Bootstrap 縮略圖

本章將講解 Bootstrap 縮略圖。大多數(shù)站點(diǎn)都需要在網(wǎng)格中布局圖像、視頻、文本等。Bootstrap 通過縮略圖為此提供了一種簡便的方式。使用 Bootstrap 創(chuàng)建縮略圖的步驟如下：

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• 在圖像周圍添加帶有 class .thumbnail 的 標(biāo)簽。
• 這會(huì)添加四個(gè)像素的內(nèi)邊距（padding）和一個(gè)灰色的邊框。
• 當(dāng)鼠標(biāo)懸停在圖像上時(shí)，會(huì)動(dòng)畫顯示出圖像的輪廓。

下面的實(shí)例演示了默認(rèn)的縮略圖：

實(shí)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
=
"
通用的占位符縮略圖
"
>

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
=
"
通用的占位符縮略圖
"
>

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
=
"
通用的占位符縮略圖
"
>

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
=
"
通用的占位符縮略圖
"
>

a
>

div
>

div
>

嘗試一下 ?

結(jié)果如下所示：

添加自定義的內(nèi)容

現(xiàn)在我們有了一個(gè)基本的縮略圖，我們可以向縮略圖添加各種 HTML 內(nèi)容，比如標(biāo)題、段落或按鈕。具體步驟如下：

• 把帶有 class .thumbnail 的 標(biāo)簽改為
  。
• 在該
  內(nèi)，您可以添加任何您想要添加的東西。由于這是一個(gè)

  ，我們可以使用默認(rèn)的基于 span 的命名規(guī)則來調(diào)整大小。
• 如果您想要給多個(gè)圖像進(jìn)行分組，請把它們放置在一個(gè)無序列表中，且每個(gè)列表項(xiàng)向左浮動(dòng)。

下面的實(shí)例演示了這點(diǎn)：

實(shí)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
=
"
通用的占位符縮略圖
"
>

<
div

class
=
"
caption
"
>

<
h3
>
縮略圖標(biāo)簽
h3
>

<
p
>
一些示例文本。一些示例文本。
p
>

<
p
>

<
a

href
=
"
#
"

class
=
"
btn btn-primary
"

role
=
"
button
"
>
按鈕
a
>

<
a

href
=
"
#
"

class
=
"
btn btn-default
"

role
=
"
button
"
>
按鈕
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
=
"
通用的占位符縮略圖
"
>

<
div

class
=
"
caption
"
>

<
h3
>
縮略圖標(biāo)簽
h3
>

<
p
>
一些示例文本。一些示例文本。
p
>

<
p
>

<
a

href
=
"
#
"

class
=
"
btn btn-primary
"

role
=
"
button
"
>
按鈕
a
>

<
a

href
=
"
#
"

class
=
"
btn btn-default
"

role
=
"
button
"
>
按鈕
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
=
"
通用的占位符縮略圖
"
>

<
div

class
=
"
caption
"
>

<
h3
>
縮略圖標(biāo)簽
h3
>

<
p
>
一些示例文本。一些示例文本。
p
>

<
p
>

<
a

href
=
"
#
"

class
=
"
btn btn-primary
"

role
=
"
button
"
>
按鈕
a
>

<
a

href
=
"
#
"

class
=
"
btn btn-default
"

role
=
"
button
"
>
按鈕
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
=
"
通用的占位符縮略圖
"
>

<
div

class
=
"
caption
"
>

<
h3
>
縮略圖標(biāo)簽
h3
>

<
p
>
一些示例文本。一些示例文本。
p
>

<
p
>

<
a

href
=
"
#
"

class
=
"
btn btn-primary
"

role
=
"
button
"
>
按鈕
a
>

<
a

href
=
"
#
"

class
=
"
btn btn-default
"

role
=
"
button
"
>
按鈕
a
>

p
>

div
>

div
>

div
>

div
>

嘗試一下 ?

結(jié)果如下所示：