HTML是網頁的基礎語言，使用它可以創建出美觀且功能齊全的網站。在編寫HTML代碼時，有時我們需要將一部分代碼進行顏色區分，例如用灰色區分代碼塊，這時就需要用到

標簽了。

標簽是HTML中專門用來展示預格式化文本的標簽。它會將代碼按原有格式進行展示，且中間的空格和換行符都會被保留。而標簽則是一個用來輸入文本的標簽，它不僅可以用于代碼輸入，還可以用于普通文本的輸入。
如果我們想把代碼塊弄成灰色，可以使用CSS樣式表來實現。首先，我們需要在HTML中引入一個CSS文件，然后在其中添加以下代碼：
pre {
background-color: #F8F8F8;
border: 1px solid #DDDDDD;
font-size: 14px;
line-height: 20px;
overflow: auto;
padding: 10px;
}
這樣，所有<pre>標簽內的代碼塊都會被設置成灰色背景，且代碼之間會有一定的間隔，看起來更加清晰美觀。
如果我們只想把部分代碼塊設置成灰色，可以使用內聯CSS樣式，如下所示：<pre style="background-color: #F8F8F8; border: 1px solid #DDDDDD; font-size: 14px; line-height: 20px; overflow: auto; padding: 10px;">//這里放置需要設置成灰色的代碼塊</pre>總之，HTML中的<pre>標簽可以很方便地展示出預格式化文本，而通過CSS樣式表可以讓代碼塊變成灰色，使其更加易讀和美觀。</div><div   id="uq00000"   class="share"></div><div   id="u2wcguk"   class="Prev_Next"><div   id="gs0o00o"   class="box">上一篇<a href="http://52shenghuonet.cn/post/1223870.html">python 執行傳參</a></div><div   id="m2q0uwy"   class="box">下一篇<a href="http://52shenghuonet.cn/post/1208900.html">vue formatter ajax</a></div></div></div><div   id="eoiase2"   class="related related-list"><h5>相關文章</h5><ul><li><a href="http://52shenghuonet.cn/post/1469806.html">html基礎教程都有哪些標題，詳細說明</a><span>08-04</span></li><li><a href="http://52shenghuonet.cn/post/1299849.html">html畫八卦動態代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1298508.html">html電子郵件鏈接怎么設置</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1298599.html">html電影代碼教程</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1298398.html">html電子商城源代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1298609.html">html電子相冊代碼送女友</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1298930.html">html電影網頁源代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1297409.html">html田字格布局怎么設置</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1297503.html">html電商網站開源代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1298538.html">html電子郵箱鏈接代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1298495.html">html電子郵件鏈接代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1299073.html">html電影院訂票代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1297960.html">html電子書翻頁效果代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1298838.html">html電影介紹網站代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1299411.html">html電腦特效代碼</a><span>06-30</span></li><li><a href="http://52shenghuonet.cn/post/1190403.html">html嵌套網站代碼嗎</a><span>06-08</span></li><li><a href="http://52shenghuonet.cn/post/1084090.html">html5.js用戶登錄代碼</a><span>05-20</span></li><li><a href="http://52shenghuonet.cn/post/1039.html">html中帶邊框的標簽，html中border 如何只出現一條邊框顏色？</a><span>11-02</span></li><li><a href="http://52shenghuonet.cn/post/1092597.html">html5騰訊地圖定位代碼</a><span>05-14</span></li><li><a href="http://52shenghuonet.cn/post/1088091.html">html5左右滑動代碼</a><span>05-15</span></li><li><a href="http://52shenghuonet.cn/post/1079507.html">html 設置固定寬度和高度</a><span>05-26</span></li><li><a href="http://52shenghuonet.cn/post/1196991.html">html怎么設置按鈕鏈接6</a><span>06-01</span></li><li><a href="http://52shenghuonet.cn/post/1194798.html">html怎么設置兩個背景</a><span>06-05</span></li><li><a href="http://52shenghuonet.cn/post/1194788.html">html怎么設置兩個代碼并排</a><span>06-05</span></li><li><a href="http://52shenghuonet.cn/post/1318815.html">html的虛線怎么設置</a><span>06-24</span></li><li><a href="http://52shenghuonet.cn/post/645165.html">黃鳥如何在html文件中注入代碼？</a><span>04-17</span></li><li><a href="http://52shenghuonet.cn/post/1640.html">html中的換行標簽6在網頁中HTML語言的換行怎么表示</a><span>11-02</span></li><li><a href="http://52shenghuonet.cn/post/713106.html">HTML中如何實現圖片反轉（詳細教程分享）</a><span>04-23</span></li><li><a href="http://52shenghuonet.cn/post/1187058.html">html字體居中加粗代碼</a><span>06-03</span></li><li><a href="http://52shenghuonet.cn/post/713461.html">HTML中如何設置上下間隔（詳細教程帶實例）</a><span>04-23</span></li></ul></div></div></div></div><div   class="eoimg2a"   id="footer"><div   id="2okcgqk"   class="copyright"><div   id="kqkq20o"   class="container"><p>老白網絡 (http://52shenghuonet.cn/) 前端 后端 zblog主題.<a href="http://52shenghuonet.cn/sitemap/post.html">網站地圖</a><a href="http://52shenghuonet.cn/sitemap/post.xml">xml</a></p><span>Powered By Z-BlogPHP</span></div></div></div><div   id="2qm0oq0"   class="bottom_tools"><a id="scrollUp" href="javascript:;" title="返回頂部"><i class="fa fa-angle-up"></i></a></div><script type="text/javascript" src="http://cdn.staticfile.org/jquery/2.2.4/jquery.min.js"></script><script src="http://cdn.yzktw.com.cn/zb_users/theme/ydproduct/script/ads.js" type="text/javascript"></script><script src="http://cdn.yzktw.com.cn/zb_users/theme/ydproduct/script/common.min.js" type="text/javascript"></script><script src="http://cdn.staticfile.org/prettify/r298/prettify.min.js" type="text/javascript"></script><script>jQuery(window).load(function(){jQuery("pre").addClass("prettyprint");prettyPrint();});</script><div   class="cagye2m"   id="ly_cache" data-id="1193324"></div>
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