12-col-1008.js

// Save the following as bookmark in your browser
javascript:(function(){if(document.getElementsByClassName("gel-grid-overlay").length){document.getElementsByClassName("gel-grid-overlay")[0].remove()}var e="<div class=\"gel-grid-overlay__grid\"><div class=\"gel-grid-overlay__margin\" style=\"left: 0;\"></div>";for(i=0;i<12;i++){e+="<div class=\"gel-grid-overlay__column\"><div class=\"gel-grid-overlay__column-fill\"></div></div>"}e+="<div class=\"gel-grid-overlay__margin\" style=\"right: 0;\"></div>";e+="</div>";var t=document.createElement("div");t.className="gel-grid-overlay";t.innerHTML=e;var n=document.createElement("style");n.innerHTML=".gel-grid-overlay * {-moz-box-sizing: border-box; -webkit-box-sizing: border-box; box-sizing: border-box;);}.gel-grid-overlay {z-index: 2147483647; position: fixed; height: 100%; width: 100%; left: 0; top: 0;}.gel-grid-overlay__grid {position: relative; width: 100%; height: 100%; max-width: 1008px; margin: 0 auto; padding: 0 4px;}.gel-grid-overlay__column {display: inline-block; height: 100%; width: 8.33333%; padding: 0 4px;}.gel-grid-overlay__column-fill {background: rgba(255,0,0,0.1); height: 100%;}.gel-grid-overlay__margin {display: inline-block; height: 100%; width: 8px; position: absolute; top: 0; background: rgba(0,255,0,0.1);}@media screen and (min-width: 400px) {.gel-grid-overlay__grid {padding: 0 12px;}.gel-grid-overlay__margin {width: 16px;}@media screen and (min-width: 600px) {.gel-grid-overlay__grid {padding: 0 8px;}.gel-grid-overlay__column {padding: 0 8px;}}";document.getElementsByTagName("head")[0].appendChild(n);document.getElementsByTagName("body")[0].appendChild(t);t.addEventListener("click",function(){document.getElementsByClassName("gel-grid-overlay")[0].remove()})})()