add links

docs/pages/components/dropdown.md

@@ -289,7 +289,7 @@ const App = () => (
 
 ### Hoisting
 
-Dropdown panels will be clipped if they're inside a container that has `overflow: auto|hidden`. The `hoist` attribute forces the panel to use a fixed positioning strategy, allowing it to break out of the container. In this case, the panel will be positioned relative to its containing block, which is usually the viewport unless an ancestor uses a `transform`, `perspective`, or `filter`. [Refer to this page](https://developer.mozilla.org/en-US/docs/Web/CSS/position#fixed) for more details.
+Dropdown panels will be clipped if they're inside a container that has `overflow: auto|hidden`. The `hoist` attribute forces the panel to use a fixed positioning strategy, allowing it to break out of the container. In this case, the panel will be positioned relative to its [containing block](https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#Identifying_the_containing_block), which is usually the viewport unless an ancestor uses a `transform`, `perspective`, or `filter`. [Refer to this page](https://developer.mozilla.org/en-US/docs/Web/CSS/position#fixed) for more details.
 
 ```html:preview
 <div class="dropdown-hoist">

docs/pages/components/popup.md

@@ -984,7 +984,7 @@ const App = () => {
 
 By default, the popup is positioned using an absolute positioning strategy. However, if your anchor is fixed or exists within a container that has `overflow: auto|hidden`, the popup risks being clipped. To work around this, you can use a fixed positioning strategy by setting the `strategy` attribute to `fixed`.
 
-The fixed positioning strategy reduces jumpiness when the anchor is fixed and allows the popup to break out containers that clip. When using this strategy, it's important to note that the content will be positioned _relative to its containing block_, which is usually the viewport unless an ancestor uses a `transform`, `perspective`, or `filter`. [Refer to this page](https://developer.mozilla.org/en-US/docs/Web/CSS/position#fixed) for more details.
+The fixed positioning strategy reduces jumpiness when the anchor is fixed and allows the popup to break out containers that clip. When using this strategy, it's important to note that the content will be positioned relative to its [containing block](https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#Identifying_the_containing_block), which is usually the viewport unless an ancestor uses a `transform`, `perspective`, or `filter`. [Refer to this page](https://developer.mozilla.org/en-US/docs/Web/CSS/position#fixed) for more details.
 
 In this example, you can see how the popup breaks out of the overflow container when it's fixed. The fixed positioning strategy tends to be less performant than absolute, so avoid using it unnecessarily.
 

docs/pages/components/tooltip.md

@@ -378,7 +378,7 @@ const App = () => (
 
 ### Hoisting
 
-Tooltips will be clipped if they're inside a container that has `overflow: auto|hidden|scroll`. The `hoist` attribute forces the tooltip to use a fixed positioning strategy, allowing it to break out of the container. In this case, the tooltip will be positioned relative to its containing block, which is usually the viewport unless an ancestor uses a `transform`, `perspective`, or `filter`. [Refer to this page](https://developer.mozilla.org/en-US/docs/Web/CSS/position#fixed) for more details.
+Tooltips will be clipped if they're inside a container that has `overflow: auto|hidden|scroll`. The `hoist` attribute forces the tooltip to use a fixed positioning strategy, allowing it to break out of the container. In this case, the tooltip will be positioned relative to its [containing block](https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#Identifying_the_containing_block), which is usually the viewport unless an ancestor uses a `transform`, `perspective`, or `filter`. [Refer to this page](https://developer.mozilla.org/en-US/docs/Web/CSS/position#fixed) for more details.
 
 ```html:preview
 <div class="tooltip-hoist">