diff --git a/public/arrays b/public/arrays
index 028fc060f..7693d73a4 100644
--- a/public/arrays
+++ b/public/arrays
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'switch';
diff --git a/public/atomic-counters b/public/atomic-counters
index ac967ccdc..2076a8805 100644
--- a/public/atomic-counters
+++ b/public/atomic-counters
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'rate-limiting';
diff --git a/public/base64-encoding b/public/base64-encoding
index 94812e28b..c6e230adb 100644
--- a/public/base64-encoding
+++ b/public/base64-encoding
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'sha256-hashes';
diff --git a/public/channel-buffering b/public/channel-buffering
index bbac79dd3..bbeca0929 100644
--- a/public/channel-buffering
+++ b/public/channel-buffering
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'channels';
diff --git a/public/channel-directions b/public/channel-directions
index 2f554f99c..45caab01b 100644
--- a/public/channel-directions
+++ b/public/channel-directions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'channel-synchronization';
diff --git a/public/channel-synchronization b/public/channel-synchronization
index f9ce9501c..9a2f7f7bf 100644
--- a/public/channel-synchronization
+++ b/public/channel-synchronization
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'channel-buffering';
diff --git a/public/channels b/public/channels
index 2ad6de039..d16903d61 100644
--- a/public/channels
+++ b/public/channels
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'goroutines';
diff --git a/public/closing-channels b/public/closing-channels
index 331b79a2e..6d7a8d524 100644
--- a/public/closing-channels
+++ b/public/closing-channels
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'non-blocking-channel-operations';
diff --git a/public/closures b/public/closures
index 399acd31d..b4573e84a 100644
--- a/public/closures
+++ b/public/closures
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'variadic-functions';
diff --git a/public/command-line-arguments b/public/command-line-arguments
index 132a57d2e..3ce13bf86 100644
--- a/public/command-line-arguments
+++ b/public/command-line-arguments
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'testing-and-benchmarking';
diff --git a/public/command-line-flags b/public/command-line-flags
index e58d90942..d1d1c712b 100644
--- a/public/command-line-flags
+++ b/public/command-line-flags
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'command-line-arguments';
diff --git a/public/command-line-subcommands b/public/command-line-subcommands
index cc95b27bb..2061d1380 100644
--- a/public/command-line-subcommands
+++ b/public/command-line-subcommands
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'command-line-flags';
diff --git a/public/constants b/public/constants
index 1a5e56a17..37eec19cd 100644
--- a/public/constants
+++ b/public/constants
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'variables';
diff --git a/public/context b/public/context
index c60472df5..3f5f5e2ef 100644
--- a/public/context
+++ b/public/context
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'http-server';
diff --git a/public/custom-errors b/public/custom-errors
index 5e8dfc4dd..b0353d81c 100644
--- a/public/custom-errors
+++ b/public/custom-errors
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'errors';
diff --git a/public/defer b/public/defer
index 84cb13f94..926d3256d 100644
--- a/public/defer
+++ b/public/defer
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'panic';
diff --git a/public/directories b/public/directories
index 1629b1fda..d6be35f94 100644
--- a/public/directories
+++ b/public/directories
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'file-paths';
diff --git a/public/embed-directive b/public/embed-directive
index d7d06929d..7fa16b2b5 100644
--- a/public/embed-directive
+++ b/public/embed-directive
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'temporary-files-and-directories';
diff --git a/public/environment-variables b/public/environment-variables
index ad03f4a1f..8a1738f66 100644
--- a/public/environment-variables
+++ b/public/environment-variables
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'command-line-subcommands';
diff --git a/public/epoch b/public/epoch
index 8e7d9a70a..d59c45957 100644
--- a/public/epoch
+++ b/public/epoch
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'time';
diff --git a/public/errors b/public/errors
index ebe576d3c..aec55bb7b 100644
--- a/public/errors
+++ b/public/errors
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'generics';
diff --git a/public/execing-processes b/public/execing-processes
index 083d11ec7..b6882cebb 100644
--- a/public/execing-processes
+++ b/public/execing-processes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'spawning-processes';
diff --git a/public/exit b/public/exit
index ff7073ceb..adfbd8af3 100644
--- a/public/exit
+++ b/public/exit
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'signals';
diff --git a/public/file-paths b/public/file-paths
index bfa4b61a5..26ea3042f 100644
--- a/public/file-paths
+++ b/public/file-paths
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'line-filters';
diff --git a/public/for b/public/for
index 514e97371..a9377c6bd 100644
--- a/public/for
+++ b/public/for
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'constants';
diff --git a/public/functions b/public/functions
index 87a3a044d..7e5efcf69 100644
--- a/public/functions
+++ b/public/functions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'range';
diff --git a/public/generics b/public/generics
index c577e1afc..f58bb2ec6 100644
--- a/public/generics
+++ b/public/generics
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'struct-embedding';
diff --git a/public/goroutines b/public/goroutines
index b9784c738..0f98c1811 100644
--- a/public/goroutines
+++ b/public/goroutines
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'custom-errors';
diff --git a/public/hello-world b/public/hello-world
index 83c5787fb..c3a597025 100644
--- a/public/hello-world
+++ b/public/hello-world
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           
           if (e.key == "ArrowRight") {
diff --git a/public/http-client b/public/http-client
index c00245320..56d1b9223 100644
--- a/public/http-client
+++ b/public/http-client
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'logging';
diff --git a/public/http-server b/public/http-server
index e2ecdc6eb..f635fc63c 100644
--- a/public/http-server
+++ b/public/http-server
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'http-client';
diff --git a/public/if-else b/public/if-else
index 1bb293a4e..b11444a15 100644
--- a/public/if-else
+++ b/public/if-else
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'for';
diff --git a/public/interfaces b/public/interfaces
index fd3b13166..e32f4e609 100644
--- a/public/interfaces
+++ b/public/interfaces
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'methods';
diff --git a/public/json b/public/json
index e33a3ef61..7024f8984 100644
--- a/public/json
+++ b/public/json
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'regular-expressions';
diff --git a/public/line-filters b/public/line-filters
index 4dc0a8714..e116f155f 100644
--- a/public/line-filters
+++ b/public/line-filters
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'writing-files';
diff --git a/public/logging b/public/logging
index b945208e4..c63d09492 100644
--- a/public/logging
+++ b/public/logging
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'environment-variables';
diff --git a/public/maps b/public/maps
index affb54a93..6aa79fba5 100644
--- a/public/maps
+++ b/public/maps
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'slices';
diff --git a/public/methods b/public/methods
index 70d36d037..3ee20982b 100644
--- a/public/methods
+++ b/public/methods
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'structs';
diff --git a/public/multiple-return-values b/public/multiple-return-values
index 7f6d6d4bd..ddcc63fe0 100644
--- a/public/multiple-return-values
+++ b/public/multiple-return-values
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'functions';
diff --git a/public/mutexes b/public/mutexes
index b88885672..db3ba87b1 100644
--- a/public/mutexes
+++ b/public/mutexes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'atomic-counters';
diff --git a/public/non-blocking-channel-operations b/public/non-blocking-channel-operations
index 4e70d05b6..0793a52fd 100644
--- a/public/non-blocking-channel-operations
+++ b/public/non-blocking-channel-operations
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'timeouts';
diff --git a/public/number-parsing b/public/number-parsing
index 9bebcd3ec..94bd625fa 100644
--- a/public/number-parsing
+++ b/public/number-parsing
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'random-numbers';
diff --git a/public/panic b/public/panic
index 08636d8ff..5565b2fcd 100644
--- a/public/panic
+++ b/public/panic
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'sorting-by-functions';
diff --git a/public/pointers b/public/pointers
index cbb64a885..20a56a05d 100644
--- a/public/pointers
+++ b/public/pointers
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'recursion';
diff --git a/public/random-numbers b/public/random-numbers
index 0598e4bc1..a292d877a 100644
--- a/public/random-numbers
+++ b/public/random-numbers
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'time-formatting-parsing';
diff --git a/public/range b/public/range
index 3c83d606a..f25d1870f 100644
--- a/public/range
+++ b/public/range
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'maps';
diff --git a/public/range-over-channels b/public/range-over-channels
index f46006046..8ead5425f 100644
--- a/public/range-over-channels
+++ b/public/range-over-channels
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'closing-channels';
diff --git a/public/rate-limiting b/public/rate-limiting
index 4ce31db2d..020e08ce8 100644
--- a/public/rate-limiting
+++ b/public/rate-limiting
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'waitgroups';
diff --git a/public/reading-files b/public/reading-files
index 085f564ee..85fc66210 100644
--- a/public/reading-files
+++ b/public/reading-files
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'base64-encoding';
diff --git a/public/recover b/public/recover
index b0d61c946..78faf8470 100644
--- a/public/recover
+++ b/public/recover
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'defer';
diff --git a/public/recursion b/public/recursion
index 8b07370ff..3d59b6c3c 100644
--- a/public/recursion
+++ b/public/recursion
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'closures';
diff --git a/public/regular-expressions b/public/regular-expressions
index 43d6beaa8..88c871e0a 100644
--- a/public/regular-expressions
+++ b/public/regular-expressions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'text-templates';
diff --git a/public/select b/public/select
index 7b660f906..6035db8c4 100644
--- a/public/select
+++ b/public/select
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'channel-directions';
diff --git a/public/sha256-hashes b/public/sha256-hashes
index f05fd3cf7..d70d00ddb 100644
--- a/public/sha256-hashes
+++ b/public/sha256-hashes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'url-parsing';
diff --git a/public/signals b/public/signals
index 6f8e1ca78..46acf10f1 100644
--- a/public/signals
+++ b/public/signals
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'execing-processes';
diff --git a/public/slices b/public/slices
index dc8889d79..8b545afa0 100644
--- a/public/slices
+++ b/public/slices
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'arrays';
diff --git a/public/sorting b/public/sorting
index cd946ab27..3d57b574d 100644
--- a/public/sorting
+++ b/public/sorting
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'stateful-goroutines';
diff --git a/public/sorting-by-functions b/public/sorting-by-functions
index 43e5f4752..2edb2d9ef 100644
--- a/public/sorting-by-functions
+++ b/public/sorting-by-functions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'sorting';
diff --git a/public/spawning-processes b/public/spawning-processes
index 5c48a4317..cebb77566 100644
--- a/public/spawning-processes
+++ b/public/spawning-processes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'context';
diff --git a/public/stateful-goroutines b/public/stateful-goroutines
index d4430729e..c6e381b28 100644
--- a/public/stateful-goroutines
+++ b/public/stateful-goroutines
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'mutexes';
diff --git a/public/string-formatting b/public/string-formatting
index 1d98485a8..ff24c03f1 100644
--- a/public/string-formatting
+++ b/public/string-formatting
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'string-functions';
diff --git a/public/string-functions b/public/string-functions
index b5f721564..aabfa4ffb 100644
--- a/public/string-functions
+++ b/public/string-functions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'recover';
diff --git a/public/strings-and-runes b/public/strings-and-runes
index 84126885b..66bdae989 100644
--- a/public/strings-and-runes
+++ b/public/strings-and-runes
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'pointers';
diff --git a/public/struct-embedding b/public/struct-embedding
index 40b5fe9dc..48ef7f854 100644
--- a/public/struct-embedding
+++ b/public/struct-embedding
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'interfaces';
diff --git a/public/structs b/public/structs
index 15a573ae9..4d8207331 100644
--- a/public/structs
+++ b/public/structs
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'strings-and-runes';
diff --git a/public/switch b/public/switch
index 947a66fed..8f8fff380 100644
--- a/public/switch
+++ b/public/switch
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'if-else';
diff --git a/public/temporary-files-and-directories b/public/temporary-files-and-directories
index bcb035452..2b5e0f4b8 100644
--- a/public/temporary-files-and-directories
+++ b/public/temporary-files-and-directories
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'directories';
diff --git a/public/testing-and-benchmarking b/public/testing-and-benchmarking
index edefa47c6..6fc29b753 100644
--- a/public/testing-and-benchmarking
+++ b/public/testing-and-benchmarking
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'embed-directive';
diff --git a/public/text-templates b/public/text-templates
index 43b39dab3..8e6251d78 100644
--- a/public/text-templates
+++ b/public/text-templates
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'string-formatting';
diff --git a/public/tickers b/public/tickers
index f3702252b..35831d982 100644
--- a/public/tickers
+++ b/public/tickers
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'timers';
diff --git a/public/time b/public/time
index 7b46e75dd..3c423cde3 100644
--- a/public/time
+++ b/public/time
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'xml';
diff --git a/public/time-formatting-parsing b/public/time-formatting-parsing
index a82af482c..d127e7fda 100644
--- a/public/time-formatting-parsing
+++ b/public/time-formatting-parsing
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'epoch';
diff --git a/public/timeouts b/public/timeouts
index 39e2ffd46..03322764e 100644
--- a/public/timeouts
+++ b/public/timeouts
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'select';
diff --git a/public/timers b/public/timers
index 107d9150a..e88e82ce0 100644
--- a/public/timers
+++ b/public/timers
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'range-over-channels';
diff --git a/public/url-parsing b/public/url-parsing
index 4b6bc03ae..0adb6be87 100644
--- a/public/url-parsing
+++ b/public/url-parsing
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'number-parsing';
diff --git a/public/values b/public/values
index 6aece1bfe..858f035a6 100644
--- a/public/values
+++ b/public/values
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'hello-world';
diff --git a/public/variables b/public/variables
index 5c07db665..ca2f86bd9 100644
--- a/public/variables
+++ b/public/variables
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'values';
diff --git a/public/variadic-functions b/public/variadic-functions
index a07a44b78..f0ef80ed3 100644
--- a/public/variadic-functions
+++ b/public/variadic-functions
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'multiple-return-values';
diff --git a/public/waitgroups b/public/waitgroups
index 6e9fdf477..1c0b5be81 100644
--- a/public/waitgroups
+++ b/public/waitgroups
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'worker-pools';
diff --git a/public/worker-pools b/public/worker-pools
index 2a024a786..0f0f59641 100644
--- a/public/worker-pools
+++ b/public/worker-pools
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'tickers';
diff --git a/public/writing-files b/public/writing-files
index 75ef52246..19270e2ab 100644
--- a/public/writing-files
+++ b/public/writing-files
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'reading-files';
diff --git a/public/xml b/public/xml
index 5ea737ac7..0e8d3883e 100644
--- a/public/xml
+++ b/public/xml
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           
           if (e.key == "ArrowLeft") {
               window.location.href = 'json';
diff --git a/templates/example.tmpl b/templates/example.tmpl
index 29b185c30..9ae3f7a40 100644
--- a/templates/example.tmpl
+++ b/templates/example.tmpl
@@ -7,6 +7,9 @@
   </head>
   <script>
       onkeydown = (e) => {
+          if (e.ctrlKey || e.altKey || e.shiftKey) {
+              return;
+          }
           {{if .PrevExample}}
           if (e.key == "ArrowLeft") {
               window.location.href = '{{.PrevExample.ID}}';