diff --git a/scss/_utilities.scss b/scss/_utilities.scss index 913fb852d58e..a5de31ba6a50 100644 --- a/scss/_utilities.scss +++ b/scss/_utilities.scss @@ -11,6 +11,7 @@ @import "utilities/screenreaders"; @import "utilities/shadows"; @import "utilities/sizing"; +@import "utilities/stretched-link"; @import "utilities/spacing"; @import "utilities/text"; @import "utilities/visibility"; diff --git a/scss/utilities/_stretched-link.scss b/scss/utilities/_stretched-link.scss new file mode 100644 index 000000000000..fb5066bf55dd --- /dev/null +++ b/scss/utilities/_stretched-link.scss @@ -0,0 +1,19 @@ +// +// Stretched link +// + +.stretched-link { + &::after { + position: absolute; + top: 0; + right: 0; + bottom: 0; + left: 0; + z-index: 1; + // Just in case `pointer-events: none` is set on a parent + pointer-events: auto; + content: ""; + // IE10 bugfix, see https://stackoverflow.com/questions/16947967/ie10-hover-pseudo-class-doesnt-work-without-background-color + background-color: rgba(0, 0, 0, 0); + } +} diff --git a/site/_data/nav.yml b/site/_data/nav.yml index 7b6ff7cd977e..3c101760742d 100644 --- a/site/_data/nav.yml +++ b/site/_data/nav.yml @@ -70,6 +70,7 @@ - title: Shadows - title: Sizing - title: Spacing + - title: Stretched link - title: Text - title: Vertical align - title: Visibility diff --git a/site/docs/4.2/utilities/stretched-link.md b/site/docs/4.2/utilities/stretched-link.md new file mode 100644 index 000000000000..5347307b53d7 --- /dev/null +++ b/site/docs/4.2/utilities/stretched-link.md @@ -0,0 +1,80 @@ +--- +layout: docs +title: Stretched link +description: Make any HTML element or Bootstrap component clickable by "stretching" a nested link via CSS. +group: utilities +--- + +Add `.stretched-link` to a link to make it's [containing block](https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block) clickable via a `::after` pseudo element. In most cases, this means that an element with `position: relative;` that contains a link with the `.stretched-link` class is clickable. + +Cards have `position: relative` by default in Bootstrap, so in this case you can safely add the `.stretched-link` class to a link in the card without any other HTML changes. + +Multiple links and tap targets are not recommended with stretched links. However, some `position` and `z-index` styles can help should this be required. + +{% capture example %} +
+ {% include icons/placeholder.svg width="100%" height="180" class="card-img-top" text=" " title="Card image cap" %} +
+
Card with stretched link
+

Some quick example text to build on the card title and make up the bulk of the card's content.

+ Go somewhere +
+
+{% endcapture %} +{% include example.html content=example %} + +Media objects do not have `position: relative` by default, so we need to add the `.position-relative` here to prevent the link from stretching outside the media object. + +{% capture example %} +
+ {% include icons/placeholder.svg width="144" height="144" class="mr-3" text=" " title="Generic placeholder image" %} +
+
Media with stretched link
+

Cras sit amet nibh libero, in gravida nulla. Nulla vel metus scelerisque ante sollicitudin. Cras purus odio, vestibulum in vulputate at, tempus viverra turpis. Fusce condimentum nunc ac nisi vulputate fringilla. Donec lacinia congue felis in faucibus.

+ Go somewhere +
+
+{% endcapture %} +{% include example.html content=example %} + +Columns are `position: relative` by default, so clickable columns only require the `.stretched-link` class on a link. However, stretching a link over an entire `.row` requires `.position-static` on the column and `.position-relative` on the row. + +{% capture example %} +
+
+ {% include icons/placeholder.svg width="100%" height="200" class="w-100" text=" " title="Generic placeholder image" %} +
+
+
Columns with stretched link
+

Cras sit amet nibh libero, in gravida nulla. Nulla vel metus scelerisque ante sollicitudin. Cras purus odio, vestibulum in vulputate at, tempus viverra turpis. Fusce condimentum nunc ac nisi vulputate fringilla. Donec lacinia congue felis in faucibus.

+ Go somewhere +
+
+{% endcapture %} +{% include example.html content=example %} + +## Identifying the containing block + +If the stretched link doesn't seem to work, the [containing block](https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block#Identifying_the_containing_block) will probably be the cause. The following CSS properties will make an element the containing block: + +- A `position` value other than `static` +- A `transform` or `perspective` value other than `none` +- A `will-change` value of `transform` or `perspective` +- A `filter` value other than `none` or a `will-change` value of `filter` (only works on Firefox) + +{% capture example %} +
+ {% include icons/placeholder.svg width="100%" height="180" class="card-img-top" text=" " title="Card image cap" %} +
+
Card with stretched links
+

Some quick example text to build on the card title and make up the bulk of the card's content.

+

+ Stretched link will not work here, because position: relative is added to the link +

+

+ This stretched link will only be spread over the p-tag, because a transform is applied to it. +

+
+
+{% endcapture %} +{% include example.html content=example %}