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老生常談Bootstrap媒體對(duì)象

 更新時(shí)間:2017年07月06日 08:46:33   投稿:jingxian  
下面小編就為大家?guī)?lái)一篇老生常談Bootstrap媒體對(duì)象。小編覺(jué)得挺不錯(cuò)的,現(xiàn)在就分享給大家,也給大家做個(gè)參考。一起跟隨小編過(guò)來(lái)看看吧

前面的話(huà)

在Web頁(yè)面或者說(shuō)移動(dòng)頁(yè)面制作中,常??吹綀D文混排效果,圖片居左(或居右),內(nèi)容居右(或居左)排列。常常把這樣的效果稱(chēng)為媒體對(duì)象??梢哉f(shuō)它是一種抽象的樣式,可以用來(lái)構(gòu)建不同類(lèi)型的組件。本文將詳細(xì)介紹Bootstrap媒體對(duì)象

默認(rèn)樣式

媒體對(duì)象一般是成組出現(xiàn),而一組媒體對(duì)象常常包括以下幾個(gè)部分:

☑ 媒體對(duì)像的容器:常使用“media”類(lèi)名表示,用來(lái)容納媒體對(duì)象的所有內(nèi)容

☑ 媒體對(duì)像的對(duì)象:常使用“media-object”表示,就是媒體對(duì)象中的對(duì)象,常常是圖片

☑ 媒體對(duì)象的主體:常使用“media-body”表示,就是媒體對(duì)像中的主體內(nèi)容,可以是任何元素,常常是圖片側(cè)邊內(nèi)容

☑ 媒體對(duì)象的標(biāo)題:常使用“media-heading”表示,就是用來(lái)描述對(duì)象的一個(gè)標(biāo)題,此部分可選

除了上面四個(gè)部分之外,在Bootstrap框架中還常常使用“media-left”或者“media-right”來(lái)控制媒體對(duì)象中的對(duì)象浮動(dòng)方式

[注意]在 html 結(jié)構(gòu)中, .media-right 應(yīng)當(dāng)放在 .media-body 的后面

媒體對(duì)象樣式相對(duì)來(lái)說(shuō)比較簡(jiǎn)單,只是設(shè)置他們之間的間距

.media,
.media-body {
 overflow: hidden;
 zoom: 1;
}
.media,
.media .media {
 margin-top: 15px;
}
.media:first-child {
 margin-top: 0;
}
.media-object {
 display: block;
}
.media-heading {
 margin: 0 0 5px;
}
.media-left {
 margin-right: 10px;
}
.media-right {
 margin-left: 10px;
}
<div class="media">
  <a class="media-left" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <img class="media-object" width=100 src="http://img.jbzj.com/file_images/article/201707/huochai.jpg" alt="...">
  </a>
  <div class="media-body">
    <h4 class="media-heading">小火柴的藍(lán)色理想</h4>
    <div>好的代碼像粥一樣,都是用時(shí)間熬出來(lái)的</div>
  </div>
</div>

嵌套

在評(píng)論系統(tǒng)中,經(jīng)常會(huì)有媒體對(duì)象嵌套的需求。在Bootstrap框架中的媒體對(duì)象也具備這樣的功能,只需要將另一個(gè)媒體對(duì)象結(jié)構(gòu)放置在媒體對(duì)象的主體內(nèi)“media-body”

<div class="media">
  <a class="media-left" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <img class="media-object" width=100 src="http://img.jbzj.com/file_images/article/201707/huochai.jpg" alt="...">
  </a>
  <div class="media-body">
    <h4 class="media-heading">小火柴的藍(lán)色理想</h4>
    <div>好的代碼像粥一樣,都是用時(shí)間熬出來(lái)的</div>
    <div class="media">
      <a class="pull-left" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
        <img class="media-object" src="http://via.placeholder.com/100x100" alt="...">
      </a>
      <div class="media-body">
        <h4 class="media-heading">我是小火柴</h4>
        <div>好巧啊,我也叫小火柴</div>
        <div class="media">
          <a class="pull-left" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
            <img class="media-object" width=100 src="http://img.jbzj.com/file_images/article/201707/huochai.jpg" alt="...">
          </a>
          <div class="media-body">
            <h4 class="media-heading">小火柴的藍(lán)色理想</h4>
            <div>是的</div>
          </div>
        </div>
      </div>
    </div>
  </div>
</div>
<div class="media">
  <a class="media-left" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <img class="media-object" width=100 src="http://img.jbzj.com/file_images/article/201707/huochai.jpg" alt="...">
  </a>
  <div class="media-body">
    <h4 class="media-heading">小火柴的藍(lán)色理想</h4>
    <div>藍(lán)色理想衰落了,前端卻欣欣向榮起來(lái)</div>
  </div>
</div>

對(duì)齊方式

圖片或其他媒體類(lèi)型可以頂部、中部或底部對(duì)齊。默認(rèn)頂部對(duì)齊。通過(guò).media-middle或.media-bottom來(lái)設(shè)置

.media-middle {
  vertical-align: middle;
}
.media-bottom {
  vertical-align: bottom;
}
<div class="media">
  <a class="media-left" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <img class="media-object" width=30 src="http://img.jbzj.com/file_images/article/201707/huochai.jpg" alt="...">
  </a>
  <div class="media-body">
    <h4 class="media-heading">小火柴的藍(lán)色理想</h4>
    <div>藍(lán)色理想衰落了,前端卻欣欣向榮起來(lái)</div>
  </div>
</div>
<div class="media">
  <a class="media-left media-middle" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <img class="media-object" width=30 src="http://img.jbzj.com/file_images/article/201707/huochai.jpg" alt="...">
  </a>
  <div class="media-body">
    <h4 class="media-heading">小火柴的藍(lán)色理想</h4>
    <div>藍(lán)色理想衰落了,前端卻欣欣向榮起來(lái)</div>
  </div>
</div>
<div class="media">
  <a class="media-left media-bottom" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <img class="media-object" width=30 src="http://img.jbzj.com/file_images/article/201707/huochai.jpg" alt="...">
  </a>
  <div class="media-body">
    <h4 class="media-heading">小火柴的藍(lán)色理想</h4>
    <div>藍(lán)色理想衰落了,前端卻欣欣向榮起來(lái)</div>
  </div>
</div>

媒體對(duì)象列表

媒體對(duì)象的嵌套僅是媒體對(duì)象中一個(gè)簡(jiǎn)單應(yīng)用效果之一,在很多時(shí)候,我們還會(huì)碰到一個(gè)列表,每個(gè)列表項(xiàng)都和媒體對(duì)象長(zhǎng)得差不多。Bootstrap框架提供了一個(gè)列表展示的效果,在寫(xiě)結(jié)構(gòu)的時(shí)候可以使用ul,并且在ul上添加類(lèi)名“media-list”,而在li上使用“media”

媒體對(duì)象列表,在樣式上也并沒(méi)有做過(guò)多的特殊處理,只是把列表的左間距置0以及去掉了項(xiàng)目列表符號(hào)

.media-list {
 padding-left: 0;
 list-style: none;
}
<ul class="media-list">
 <li class="media">
  <a class="media-left" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <img class="media-object" width=30 src="http://img.jbzj.com/file_images/article/201707/huochai.jpg" alt="...">
  </a>
  <div class="media-body">
    <h4 class="media-heading">小火柴的藍(lán)色理想</h4>
    <div>藍(lán)色理想衰落了,前端卻欣欣向榮起來(lái)</div>
  </div>
 </li>
 <li class="media">
  <a class="media-left" href="#" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >
    <img class="media-object" width=30 src="http://img.jbzj.com/file_images/article/201707/huochai.jpg" alt="...">
  </a>
  <div class="media-body">
    <h4 class="media-heading">小火柴的藍(lán)色理想</h4>
    <div>好的代碼像粥一樣,都是用時(shí)間熬出來(lái)的</div>
  </div>
 </li> 
</ul>

以上這篇老生常談Bootstrap媒體對(duì)象就是小編分享給大家的全部?jī)?nèi)容了,希望能給大家一個(gè)參考,也希望大家多多支持腳本之家。

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