document.write("<div class=\"item\">    <div class=\"title\"><a href=\"http://www.itpow.com/c/2017/02/6823.asp\" target=\"_blank\"><span class=\"key\">CSS</span> <span class=\"key\">实际</span><span class=\"key\">应用</span><span class=\"key\">－</span><span class=\"key\">让</span><span class=\"key\">人</span><span class=\"key\">想不到</span>的 <span class=\"key\">line</span>-<span class=\"key\">height</span> 的 <span class=\"key\">em</span> <span class=\"key\">算法</span></a></div>    <div class=\"abstract\"><span class=\"pubDate\">2017年02月23日</span> amp;lt;style type=&quot;text/<span class=\"key\">css</span>&quot;&amp;gt;body { <span class=\"key\">line</span>-<span class=\"key\">height</span>:3<span class=\"key\">em</span>; }&amp;lt;/style&amp;gt;</div>    <div class=\"url\"><a href=\"http://www.itpow.com/c/2017/02/6823.asp\" target=\"_blank\">http://www.itpow.com/c/2017/02/6823.asp</a></div></div><div class=\"item\">    <div class=\"title\"><a href=\"http://www.itpow.com/c/2021/07/15338.asp\" target=\"_blank\"><span class=\"key\">CSS</span> <span class=\"key\">实际</span><span class=\"key\">应用</span><span class=\"key\">－</span>手机中轻松的自动高度</a></div>    <div class=\"abstract\"><span class=\"pubDate\">2021年07月16日</span> 度的 3/4，我想要列表中某图片宽度的 3/4，这怎么办呢？一样的，只是计算更深了，举个例子：<span class=\"key\">height</span>:calc(((100vw&amp;nbsp;/&amp;nbsp;2)&amp;nbsp;-</div>    <div class=\"url\"><a href=\"http://www.itpow.com/c/2021/07/15338.asp\" target=\"_blank\">http://www.itpow.com/c/2021/07/15338.asp</a></div></div><div class=\"item\">    <div class=\"title\"><a href=\"http://www.itpow.com/c/2020/06/12883.asp\" target=\"_blank\"><span class=\"key\">CSS</span> <span class=\"key\">实际</span><span class=\"key\">应用</span><span class=\"key\">－</span>纯 <span class=\"key\">CSS</span>，不用背景，实现图片等比例展示</a></div>    <div class=\"abstract\"><span class=\"pubDate\">2020年06月23日</span> fy-content:center; 保证水平、垂直居中显示。其次：width:160px; <span class=\"key\">height</span>:90px; border:1px solid #eee; 限定显示框的大小。然后：overf</div>    <div class=\"url\"><a href=\"http://www.itpow.com/c/2020/06/12883.asp\" target=\"_blank\">http://www.itpow.com/c/2020/06/12883.asp</a></div></div><div class=\"item\">    <div class=\"title\"><a href=\"http://www.itpow.com/c/2017/02/6828.asp\" target=\"_blank\"><span class=\"key\">CSS</span> <span class=\"key\">实际</span><span class=\"key\">应用</span><span class=\"key\">－</span>一些有趣的 <span class=\"key\">CSS</span> 选择符</a></div>    <div class=\"abstract\"><span class=\"pubDate\">2017年02月23日</span> hild：&amp;lt;style&amp;nbsp;type=&amp;quot;text/<span class=\"key\">css</span>&amp;quot;&amp;gt;p:first-child&amp;nbsp;{&amp</div>    <div class=\"url\"><a href=\"http://www.itpow.com/c/2017/02/6828.asp\" target=\"_blank\">http://www.itpow.com/c/2017/02/6828.asp</a></div></div><div class=\"item\">    <div class=\"title\"><a href=\"http://www.itpow.com/c/2017/02/6822.asp\" target=\"_blank\"><span class=\"key\">CSS</span> <span class=\"key\">实际</span><span class=\"key\">应用</span><span class=\"key\">－</span>无高度时，宽度也就无效</a></div>    <div class=\"abstract\"><span class=\"pubDate\">2017年02月22日</span> 效，最终的显示效果就是等同于没有这个 div。如何才能使它有高度呢？法一是指定 <span class=\"key\">height</span>&amp;nbsp;<span class=\"key\">CSS</span> 属性。法二是指定内容。不过空格、换行符、Tab&amp;nbsp;这种空白字符</div>    <div class=\"url\"><a href=\"http://www.itpow.com/c/2017/02/6822.asp\" target=\"_blank\">http://www.itpow.com/c/2017/02/6822.asp</a></div></div>")