in English
拉伸链接
通过 CSS“拉伸”嵌套链接,使任何 HTML 元素或 Bootstrap 组件可点击。
添加.stretched-link
到链接以使其包含块可通过::after
伪元素单击。在大多数情况下,这意味着position: relative;
包含.stretched-link
类链接的元素是可点击的。请注意CSS的position
工作原理,.stretched-link
不能与大多数表格元素混合。
Bootstrap 中默认有卡片position: relative
,因此在这种情况下,您可以安全地将.stretched-link
类添加到卡片中的链接,而无需任何其他 HTML 更改。
不建议使用拉伸链接使用多个链接和点击目标。但是,如果需要,一些position
和z-index
样式可以提供帮助。
<div class="card" style="width: 18rem;">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card with stretched link</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
<a href="#" class="btn btn-primary stretched-link">Go somewhere</a>
</div>
</div>
大多数自定义组件默认是没有position: relative
的,所以我们需要在.position-relative
此处添加,以防止链接拉伸到父元素之外。
<div class="d-flex position-relative">
<img src="..." class="flex-shrink-0 me-3" alt="...">
<div>
<h5 class="mt-0">Custom component with stretched link</h5>
<p>This is some placeholder content for the custom component. It is intended to mimic what some real-world content would look like, and we're using it here to give the component a bit of body and size.</p>
<a href="#" class="stretched-link">Go somewhere</a>
</div>
</div>
<div class="row g-0 bg-light position-relative">
<div class="col-md-6 mb-md-0 p-md-4">
<img src="..." class="w-100" alt="...">
</div>
<div class="col-md-6 p-4 ps-md-0">
<h5 class="mt-0">Columns with stretched link</h5>
<p>Another instance of placeholder content for this other custom component. It is intended to mimic what some real-world content would look like, and we're using it here to give the component a bit of body and size.</p>
<a href="#" class="stretched-link">Go somewhere</a>
</div>
</div>
识别包含块
如果拉伸的链接似乎不起作用,则可能是包含块的原因。以下 CSS 属性将使元素成为包含块:
- 以外的
position
值static
- A
transform
或perspective
其他值none
will-change
值为transform
或_perspective
- 一个
filter
不同于none
或一个will-change
值filter
(仅适用于 Firefox)
带有拉伸链接的卡片
一些快速的示例文本以卡片标题为基础,并构成卡片的大部分内容。
拉伸链接在这里不起作用,因为position: relative
被添加到链接中
此拉伸链接将仅分布在p
-tag 上,因为对其应用了转换。
<div class="card" style="width: 18rem;">
<img src="..." class="card-img-top" alt="...">
<div class="card-body">
<h5 class="card-title">Card with stretched links</h5>
<p class="card-text">Some quick example text to build on the card title and make up the bulk of the card's content.</p>
<p class="card-text">
<a href="#" class="stretched-link text-danger" style="position: relative;">Stretched link will not work here, because <code>position: relative</code> is added to the link</a>
</p>
<p class="card-text bg-light" style="transform: rotate(0);">
This <a href="#" class="text-warning stretched-link">stretched link</a> will only be spread over the <code>p</code>-tag, because a transform is applied to it.
</p>
</div>
</div>