Bootstrap4 折叠
Bootstrap4 折叠可以很容易的实现内容的显示与隐藏。
实例
< button data-toggle = " collapse " data-target = " #demo " > 折叠 </ button > < div id = " demo " class = " collapse " > Lorem ipsum dolor text.... </ div >
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实例解析
.collapse 类用于指定一个折叠元素 (实例中的 <div>); 点击按钮后会在隐藏与显示之间切换。
控制内容的隐藏与显示,需要在 <a> 或 <button> 元素上添加 data-toggle="collapse" 属性。 data-target="#id" 属性是对应折叠的内容 (<div id="demo">)。
注意: <a> 元素上你可以使用 href 属性来代替 data-target 属性:
实例
< a href = " #demo " data-toggle = " collapse " > Collapsible </ a > < div id = " demo " class = " collapse " > Lorem ipsum dolor text.... </ div >
尝试一下 »
默认情况下折叠的内容是隐藏的,你可以添加 .show 类让内容默认显示:
以下实例通过扩展卡片组件来显示简单的手风琴。
注意: 使用 data-parent 属性来确保所有的折叠元素在指定的父元素下,这样就能实现在一个折叠选项显示时其他选项就隐藏。
实例
< div id = " accordion " > < div class = " card " > < div class = " card-header " > < a class = " card-link " data-toggle = " collapse " data-parent = " #accordion " href = " #collapseOne " > Collapsible Group Item #1 </ a > </ div > < div id = " collapseOne " class = " collapse show " > < div class = " card-body " > Lorem ipsum.. </ div > </ div > </ div > < div class = " card " > < div class = " card-header " > < a class = " collapsed card-link " data-toggle = " collapse " data-parent = " #accordion " href = " #collapseTwo " > Collapsible Group Item #2 </ a > </ div > < div id = " collapseTwo " class = " collapse " > < div class = " card-body " > Lorem ipsum.. </ div > </ div > </ div > < div class = " card " > < div class = " card-header " > < a class = " collapsed card-link " data-toggle = " collapse " data-parent = " #accordion " href = " #collapseThree " > Collapsible Group Item #3 </ a > </ div > < div id = " collapseThree " class = " collapse " > < div class = " card-body " > Lorem ipsum.. </ div > </ div > </ div > </ div >
尝试一下 »