Bootstrap 缩略图
本章将讲解 Bootstrap 缩略图。大多数站点都需要在网格中布局图像、视频、文本等。Bootstrap 通过缩略图为此提供了一种简便的方式。使用 Bootstrap 创建缩略图的步骤如下:

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- 在图像周围添加带有 class .thumbnail 的 标签。
- 这会添加四个像素的内边距(padding)和一个灰色的边框。
- 当鼠标悬停在图像上时,会动画显示出图像的轮廓。
下面的实例演示了默认的缩略图:
实例
<
div
class
=
"
row
"
>
<
div
class
=
"
col-sm-6 col-md-3
"
>
<
a
href
=
"
#
"
class
=
"
thumbnail
"
>
<
img
decoding
=
"
async
"
src
=
"
/wp-content/uploads/2014/06/kittens.jpg
"
alt
=
"
通用的占位符缩略图
"
>
a
>
div
>
<
div
class
=
"
col-sm-6 col-md-3
"
>
<
a
href
=
"
#
"
class
=
"
thumbnail
"
>
<
img
decoding
=
"
async
"
src
=
"
/wp-content/uploads/2014/06/kittens.jpg
"
alt
=
"
通用的占位符缩略图
"
>
a
>
div
>
<
div
class
=
"
col-sm-6 col-md-3
"
>
<
a
href
=
"
#
"
class
=
"
thumbnail
"
>
<
img
decoding
=
"
async
"
src
=
"
/wp-content/uploads/2014/06/kittens.jpg
"
alt
=
"
通用的占位符缩略图
"
>
a
>
div
>
<
div
class
=
"
col-sm-6 col-md-3
"
>
<
a
href
=
"
#
"
class
=
"
thumbnail
"
>
<
img
decoding
=
"
async
"
src
=
"
/wp-content/uploads/2014/06/kittens.jpg
"
alt
=
"
通用的占位符缩略图
"
>
a
>
div
>
div
>
尝试一下 »
结果如下所示:
添加自定义的内容
现在我们有了一个基本的缩略图,我们可以向缩略图添加各种 HTML 内容,比如标题、段落或按钮。具体步骤如下:
- 把带有 class .thumbnail 的 标签改为 。
- 在该
内,您可以添加任何您想要添加的东西。由于这是一个,我们可以使用默认的基于 span 的命名规则来调整大小。- 如果您想要给多个图像进行分组,请把它们放置在一个无序列表中,且每个列表项向左浮动。
下面的实例演示了这点:
实例
<
div
class
=
"
row
"
>
<
div
class
=
"
col-sm-6 col-md-3
"
>
<
div
class
=
"
thumbnail
"
>
<
img
decoding
=
"
async
"
src
=
"
/wp-content/uploads/2014/06/kittens.jpg
"
alt
=
"
通用的占位符缩略图
"
>
<
div
class
=
"
caption
"
>
<
h3
>
缩略图标签
h3
>
<
p
>
一些示例文本。一些示例文本。
p
>
<
p
>
<
a
href
=
"
#
"
class
=
"
btn btn-primary
"
role
=
"
button
"
>
按钮
a
>
<
a
href
=
"
#
"
class
=
"
btn btn-default
"
role
=
"
button
"
>
按钮
a
>
p
>
div
>
div
>
div
>
<
div
class
=
"
col-sm-6 col-md-3
"
>
<
div
class
=
"
thumbnail
"
>
<
img
decoding
=
"
async
"
src
=
"
/wp-content/uploads/2014/06/kittens.jpg
"
alt
=
"
通用的占位符缩略图
"
>
<
div
class
=
"
caption
"
>
<
h3
>
缩略图标签
h3
>
<
p
>
一些示例文本。一些示例文本。
p
>
<
p
>
<
a
href
=
"
#
"
class
=
"
btn btn-primary
"
role
=
"
button
"
>
按钮
a
>
<
a
href
=
"
#
"
class
=
"
btn btn-default
"
role
=
"
button
"
>
按钮
a
>
p
>
div
>
div
>
div
>
<
div
class
=
"
col-sm-6 col-md-3
"
>
<
div
class
=
"
thumbnail
"
>
<
img
decoding
=
"
async
"
src
=
"
/wp-content/uploads/2014/06/kittens.jpg
"
alt
=
"
通用的占位符缩略图
"
>
<
div
class
=
"
caption
"
>
<
h3
>
缩略图标签
h3
>
<
p
>
一些示例文本。一些示例文本。
p
>
<
p
>
<
a
href
=
"
#
"
class
=
"
btn btn-primary
"
role
=
"
button
"
>
按钮
a
>
<
a
href
=
"
#
"
class
=
"
btn btn-default
"
role
=
"
button
"
>
按钮
a
>
p
>
div
>
div
>
div
>
<
div
class
=
"
col-sm-6 col-md-3
"
>
<
div
class
=
"
thumbnail
"
>
<
img
decoding
=
"
async
"
src
=
"
/wp-content/uploads/2014/06/kittens.jpg
"
alt
=
"
通用的占位符缩略图
"
>
<
div
class
=
"
caption
"
>
<
h3
>
缩略图标签
h3
>
<
p
>
一些示例文本。一些示例文本。
p
>
<
p
>
<
a
href
=
"
#
"
class
=
"
btn btn-primary
"
role
=
"
button
"
>
按钮
a
>
<
a
href
=
"
#
"
class
=
"
btn btn-default
"
role
=
"
button
"
>
按钮
a
>
p
>
div
>
div
>
div
>
div
>
尝试一下 »结果如下所示:
网站栏目:创新互联Bootstrap教程:Bootstrap 缩略图
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