提高网页浏览速度之CSS一张图片多个网页_css

下图是amazon.com官方网站的一张网站应用的css背景图片,下面我们来详解一下它的用法.

以下是程序代码

下面演示的是如何取得X轴:475像素和Y轴355像素位置的GO按钮图片做背景：<div style="width:25px;height:25px;background: #fff url(/web/UploadPic/2009-5/200951619265814.png); background-repeat: repeat-x; background-position: -475px -355px"></div>[/code]<br /><input onclick="runEx('CodeText16001')"  type="button" value="运行代码"/> <input onclick="doCopy('CodeText16001')"  type="button" value="复制代码"/> <input onclick="saveCode('CodeText16001')"  type="button" value="另存代码"/><br /> [Ctrl+A 全部选择 提示：你可先修改部分代码，再按运行]</div>
</div>
<p>为什么把那么多网页应用的按钮和图放在一张图里呢?这是阿里西西alixixi.com的一个会员提出的问题.</p>
<p>这里做一下答复:好处就是可以有效的提高网页的浏览速度,图片只需一次加载,多次应用…如果你分开来的话,打开一个图片多的网页,那么你要进行十几次的图片下载操作,而这种方法,只需一次.</p>
<p>欢迎大家阅读<span style='color:red;'>《提高网页浏览速度之CSS一张图片多个网页…_css》</span>,跪求各位点评,若觉得好的话请收藏本文，by <strong>搞代码</strong></p>
<hr /><div class="open-message">搞代码网（<a href="www.gaodaima.com"  target="_blank"  title="gaodaima.com">gaodaima.com</a>）提供的所有资源部分来自互联网，如果有侵犯您的版权或其他权益，请说明详细缘由并提供版权或权益证明然后发送到邮箱<a>chengxuyuan@gaodaima.com‍</a>，我们会在看到邮件的第一时间内为您处理，或直接联系<a>QQ：872152909</a>。本网站采用<a href="https://www.gaodaima.com/go.html?url=http://creativecommons.org/licenses/by-nc-sa/3.0/"  rel="nofollow" target="_blank" title="BY-NC-SA授权协议">BY-NC-SA</a>协议进行授权 <br >转载请注明原文链接：<a href="https://www.gaodaima.com/22899.html" target="_blank" title="提高网页浏览速度之CSS一张图片多个网页_css">提高网页浏览速度之CSS一张图片多个网页_css</a><a id="spreadAds" target="_blank" href="" onclick="spreadAds()"></a><a id="spreadAds2" target="_blank" href=""></a> </div>  <div class="article-social"> <a href="javascript:;" data-action="ding" data-id="22899" id="Addlike" class="action"><i class="fa fa-heart-o"></i>喜欢 (<span class="count">0</span>)</a><span class="or"><style>.article-social .weixin:hover{background:#fff;}</style><a class="weixin" style="border-bottom:0px;font-size:15pt;cursor:pointer;">赏<div class="weixin-popover"><div class="popover bottom in"><div class="arrow"></div><div class="popover-title"><center>[搞代码]</center></div><div class="popover-content"><img width="200px" height="200px" src="http://www.gaodaima.com/wp-content/uploads/hai_AliPay.png" ></div></div></div></a></span><span class="action action-share bdsharebuttonbox"><i class="fa fa-share-alt"></i>分享 (<span class="bds_count" data-cmd="count" title="累计分享0次">0</span>)<div class="action-popover"><div class="popover top in"><div class="arrow"></div><div class="popover-content"><a href="#" class="sinaweibo fa fa-weibo" data-cmd="tsina" title="分享到新浪微博"></a><a href="#" class="bds_qzone fa fa-star" data-cmd="qzone" title="分享到QQ空间"></a><a href="#" class="qq fa fa-qq" data-cmd="sqq" title="分享到QQ好友"></a><a href="#" class="bds_renren fa fa-renren" data-cmd="renren" title="分享到人人网"></a><a href="#" class="bds_weixin fa fa-weixin" data-cmd="weixin" title="分享到微信"></a><a href="#" class="bds_more fa fa-ellipsis-h" data-cmd="more"></a></div></div></div></span></div> </article> <footer class="article-footer"> <div class="article-tags"><i class="fa fa-tags"></i><a href="https://www.gaodaima.com/tag/css" rel="tag">css</a><a href="https://www.gaodaima.com/tag/html" rel="tag">html</a><a href="https://www.gaodaima.com/tag/java" rel="tag">java</a><a href="https://www.gaodaima.com/tag/javascript" rel="tag">JavaScript</a></div></footer> <nav class="article-nav"><div class="_d13vl98i0pw"></div><script type="text/javascript"> (window.slotbydup = window.slotbydup || []).push({ id: "u6795176", container: "_d13vl98i0pw", async: true });</script> </nav><div id="donatecoffee" style="overflow:auto;display:none;"><img width="400" height="400" alt="支持作者一杯咖啡" src="http://www.gaodaima.com/wp-content/uploads/hai_AliPay.png"></div> <div class="related_top"> <div class="related_posts"><ul class="related_img"> <li class="related_box" > <a href="https://www.gaodaima.com/432440.html" title="java怎么样学java正确" target="_blank"><img class="thumb" style="width:185px;height:110px" data-original="https://www.gaodaima.com/wp-content/themes/Git-alpha/timthumb.php?src=https://www.gaodaima.com/wp-content/themes/Git-alpha/assets/img/pic/3.jpg&h=110&w=185&q=90&zc=1&ct=1" alt="java怎么样学java正确" /><br><span class="r_title">java怎么样学java正确</span></a> </li> <li class="related_box" > <a href="https://www.gaodaima.com/432401.html" title="Java面试题（11）" target="_blank"><img class="thumb" style="width:185px;height:110px" data-original="https://www.gaodaima.com/wp-content/themes/Git-alpha/timthumb.php?src=https://www.gaodaima.com/wp-content/themes/Git-alpha/assets/img/pic/1.jpg&h=110&w=185&q=90&zc=1&ct=1" alt="Java面试题（11）" /><br><span class="r_title">Java面试题（11）</span></a> </li> <li class="related_box" > <a href="https://www.gaodaima.com/432366.html" title="软件构造 03 正则表达式" target="_blank"><img class="thumb" style="width:185px;height:110px" data-original="https://www.gaodaima.com/wp-content/themes/Git-alpha/timthumb.php?src=https://www.gaodaima.com/wp-content/themes/Git-alpha/assets/img/pic/9.jpg&h=110&w=185&q=90&zc=1&ct=1" alt="软件构造 03 正则表达式" /><br><span class="r_title">软件构造 03 正则表达式</span></a> </li> <li class="related_box" > <a href="https://www.gaodaima.com/432360.html" title="类和对象的概念与类和对象的关系" target="_blank"><img class="thumb" style="width:185px;height:110px" data-original="https://www.gaodaima.com/wp-content/themes/Git-alpha/timthumb.php?src=https://www.gaodaima.com/wp-content/themes/Git-alpha/assets/img/pic/2.jpg&h=110&w=185&q=90&zc=1&ct=1" alt="类和对象的概念与类和对象的关系" /><br><span class="r_title">类和对象的概念与类和对象的关系</span></a> </li> </ul><div class="relates"><div class="_mw9fz31sqco"></div><script type="text/javascript"> (window.slotbydup = window.slotbydup || []).push({ id: "u6795180", container: "_mw9fz31sqco", async: true });</script><ul><li><i class="fa fa-minus"></i><a href="https://www.gaodaima.com/432359.html">面向对象思想概述、类和对象概念、类和对象的关系</a></li><li><i class="fa fa-minus"></i><a href="https://www.gaodaima.com/432357.html">4.15软工学习周报</a></li><li><i class="fa fa-minus"></i><a href="https://www.gaodaima.com/432314.html">Java面向对象下笔记&1000以内素数</a></li><li><i class="fa fa-minus"></i><a href="https://www.gaodaima.com/432291.html">学习Java应该留意的问题</a></li><li><i class="fa fa-minus"></i><a href="https://www.gaodaima.com/432250.html">Java集合框架(四)-HashMap</a></li><li><i class="fa fa-minus"></i><a href="https://www.gaodaima.com/432246.html">java学习</a></li><li><i class="fa fa-minus"></i><a href="https://www.gaodaima.com/432243.html">Java 入门与进阶P-7.1+P-7.2</a></li><li><i class="fa fa-minus"></i><a href="https://www.gaodaima.com/432233.html">Java方法</a></li></ul></div></div> </div> <div id="comment-ad" class="banner banner-related"><div class="_9madbukio7r"></div><script type="text/javascript"> (window.slotbydup = window.slotbydup || []).push({ id: "u6677406", container: "_9madbukio7r", async: true });</script><script type="text/javascript" src="//cpro.baidustatic.com/cpro/ui/cm.js" async="async" defer="defer" ></script></div> <div id="respond" class="no_webshot"> <form action="https://www.gaodaima.com/asdloie8574asdqwexzxdqwertasdqwe.php" method="post" id="commentform"> <div class="comt-title"> <div class="comt-avatar pull-left"> <img src="https://cdn.v2ex.com/gravatar/?s=50" class="avatar avatar-108"> </div> <div class="comt-author pull-left"> 发表我的评论 </div> <a id="cancel-comment-reply-link" class="pull-right" href="javascript:;">取消评论</a> </div> <div class="comt"> <div class="comt-box"> <textarea placeholder="说点什么吧…" class="input-block-level comt-area" name="comment" id="comment" cols="100%" rows="3" tabindex="1" onkeydown="if(event.ctrlKey&&event.keyCode==13){document.getElementById('submit').click();return false};">

评论通知

表情贴图加粗删除线居中斜体签到

Hi，您需要填写昵称和邮箱！

昵称昵称 (必填)
邮箱邮箱 (必填)
网址网址