Bootstrap4 折叠

<
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:

实例

<
div

id
=
"
demo
"

class
=
"
collapse show
"
>
Lorem ipsum dolor text....
div
>

尝试一下 »

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
"

href
=
"
#collapseOne
"
>
选项一
a
>

div
>

<
div

id
=
"
collapseOne
"

class
=
"
collapse show
"

data-parent
=
"
#accordion
"
>

<
div

class
=
"
card-body
"
>
#1 内容：菜鸟教程 -- 学的不仅是技术，更是梦想！！！
div
>

div
>

div
>

<
div

class
=
"
card
"
>

<
div

class
=
"
card-header
"
>

<
a

class
=
"
collapsed card-link
"

data-toggle
=
"
collapse
"

href
=
"
#collapseTwo
"
>
选项二
a
>

div
>

<
div

id
=
"
collapseTwo
"

class
=
"
collapse
"

data-parent
=
"
#accordion
"
>

<
div

class
=
"
card-body
"
>
#2 内容：菜鸟教程 -- 学的不仅是技术，更是梦想！！！
div
>

div
>

div
>

<
div

class
=
"
card
"
>

<
div

class
=
"
card-header
"
>

<
a

class
=
"
collapsed card-link
"

data-toggle
=
"
collapse
"

href
=
"
#collapseThree
"
>
选项三
a
>

div
>

<
div

id
=
"
collapseThree
"

class
=
"
collapse
"

data-parent
=
"
#accordion
"
>

<
div

class
=
"
card-body
"
>
#3 内容：菜鸟教程 -- 学的不仅是技术，更是梦想！！！
div
>

div
>

div
>

div
>

尝试一下 »