淺談css的僞元素::after和::before

時間 2020-06-29

標籤淺談 css 元素欄目 CSS 简体版

原文原文鏈接

css中的::after和::before已經被大量地使用在咱們平常開發中了，使用他們可使咱們的文檔結構更加簡潔。可是不少人對::after和::before仍不是特別瞭解，究竟他們是作什麼的？如何使用他們？何時應該使用他們？筆者總結了一些對僞元素的理解和使用經驗。css 1、概念： 1.定義 The CSS ::before(::after) pseudo-element matches a v

>>阅读原文<<

1. 淺談css的僞元素::after和::before
2. CSS僞類元素：after ：before
3. css僞元素 ::after ::before
4. css僞元素after、before
5. CSS的僞元素::after和::before
6. CSS 的::before 和 ::after 僞元素用法
7. css的僞元素::after和::before
8. css before和after僞元素應用
9. CSS ::before 和 ::after 僞元素進階
10. CSS ::before 和 ::after 僞元素用法
更多相關文章...
• RSS , <link>, 和 <description> 元素</a> - <a href="http://www.voidme.com/rss" target="_blank" title="RSS 教程"> RSS 教程</a></li> <li> • <a href="http://www.voidme.com/rss/rss-tag-title-link-description-channel" target="_blank" title="RSS <title>, <link>, 和 <description> 元素"> RSS <title>, <link>, 和 <description> 元素</a> - <a href="http://www.voidme.com/rss" target="_blank" title="RSS 教程"> RSS 教程</a></li> <li> • <a href="http://www.voidme.com/content/the-lock-mechanism-of-mysql-bsx" target="_blank" title="漫談MySQL的鎖機制"> 漫談MySQL的鎖機制</a> </li> <li> • <a href="http://www.voidme.com/content/docker-and-kubernetes-bsx" target="_blank" title="Docker容器實戰(八) - 漫談 Kubernetes 的本質"> Docker容器實戰(八) - 漫談 Kubernetes 的本質</a> </li> </ul> <div class="margin-top-20"></div> <div> <div></div> </div> <div class="margin-top-20"></div> <div class="relative">相關標籤/搜索</div> <ul> <a target='_blank' href="http://hk.javashuo.com/tag/before%26after" title="before&after"> <span class="new-label">before&after</span></a> <a target='_blank' href="http://hk.javashuo.com/tag/%E6%B7%BA%E8%AB%87" title="淺談"> <span class="new-label">淺談</span></a> <a target='_blank' href="http://hk.javashuo.com/tag/%E5%85%83%E7%B4%A0" title="元素"> <span class="new-label">元素</span></a> <a target='_blank' href="http://hk.javashuo.com/tag/%E5%92%8C%E8%AB%87" title="和談"> <span class="new-label">和談</span></a> <a target='_blank' href="http://hk.javashuo.com/tag/%E5%83%9E%E9%A1%9E%2F%E5%85%83%E7%B4%A0%E9%81%B8%E6%93%87%E5%99%A8" title="僞類/元素選擇器"> <span class="new-label">僞類/元素選擇器</span></a> <a target='_blank' href="http://hk.javashuo.com/tag/%E8%AB%87%E7%9A%84" title="談的"> <span class="new-label">談的</span></a> <a target='_blank' href="http://hk.javashuo.com/tag/%E6%B7%BA%E8%AB%87BigDecimal" title="淺談BigDecimal"> <span class="new-label">淺談BigDecimal</span></a> <a target='_blank' href="http://hk.javashuo.com/column/css " title="CSS"> <span class="new-label">CSS</span></a> <a href="http://www.voidme.com/xlink" target="_blank" title="XLink 和 XPointer 教程"> <span class="new-label">XLink 和 XPointer 教程</span></a> <a href="http://www.voidme.com/mybatis" target="_blank" title="MyBatis教程"> <span class="new-label">MyBatis教程</span></a> <a href="http://www.voidme.com/php" target="_blank" title="PHP教程"> <span class="new-label">PHP教程</span></a> </ul> </div> <div class="article_social"> <div class="article_like"> <div class="circle circle-like" id="my_zan" data_id="eEvIVb6"></div> </div> <div class="clear"></div> <div class="share"> <span class="share-left bdsharebuttonbox" data-tag="share_1"> <a href="#" class="bds_more icon-share" data-cmd="more"> <span class="bds_count" data-cmd="count" title="累计分享0次">0</span> </a> </span> <div class="share-right action action-share bdsharebuttonbox" data-tag="share_1"> <span class="bdshare"> <a href="#" class="bds_sinaweibo icon-weibo" data-cmd="tsina" title="分享到新浪微博">分享到微博</a> <a href="#" class="bds_weixin icon-wechat" data-cmd="weixin" title="分享到微信">分享到微信</a> <a href="#" class="bds_qq icon-qq" data-cmd="sqq" title="分享到QQ好友">分享到QQ</a> </span> </div> </div> <div class="clear"></div> <div class="bottom_plink huodong-detail-plink-banner clearfix"> </div> </div> <script> $(function () { $("#originfo").text("https://blog.csdn.net/weixin_30702413/article/details/95695629"); $("#originfo").hover(function () { $("#originfo").attr("href", "/link?url=https://blog.csdn.net/weixin_30702413/article/details/95695629"); }, function () { $("#originfo").attr("href", "javascript:void()"); }); }); </script> <script src="http://static2.javashuo.com/static/script/article.js?time=1735430479762" type="text/javascript"></script> </div> <div class="span3 article_right_side"> <div class="right_top"> <div id="right_site_articles" class="article_detail_bg"> <div class="article-part-title"> <span>每日一句</span> </div> <ul class="side_article_list"> 每一个你不满意的现在，都有一个你没有努力的曾经。 </ul> </div><script async src="https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>  <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-6208739752673518" data-ad-slot="5830279121" data-ad-format="auto" data-full-width-responsive="true"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> <div id="right_site_articles"> <div class="article-part-title"> <span>最新文章</span> </div> <ul class="side_article_list"> <li class="side_article_list_item">1. <a href="http://hk.javashuo.com/article/p-dzrlisvr-xh.html" target="_blank" title="網絡層協議以及Ping"> 網絡層協議以及Ping </a> </li> <li class="side_article_list_item">2. <a href="http://hk.javashuo.com/article/p-exjzegtr-xh.html" target="_blank" title="ping檢測"> ping檢測 </a> </li> <li class="side_article_list_item">3. <a href="http://hk.javashuo.com/article/p-buuuttwy-xh.html" target="_blank" title="爲開發者總結了Android ADB 的常用十種命令"> 爲開發者總結了Android ADB 的常用十種命令 </a> </li> <li class="side_article_list_item">4. <a href="http://hk.javashuo.com/article/p-zcnmpjwi-xh.html" target="_blank" title="3·15 CDN維權——看懂第三方性能測試指標"> 3·15 CDN維權——看懂第三方性能測試指標 </a> </li> <li class="side_article_list_item">5. <a href="http://hk.javashuo.com/article/p-cdngiypx-xh.html" target="_blank" title="基於 Dawn 進行多工程管理"> 基於 Dawn 進行多工程管理 </a> </li> <li class="side_article_list_item">6. <a href="http://hk.javashuo.com/article/p-umcauwvv-xh.html" target="_blank" title="缺陷的分類"> 缺陷的分類 </a> </li> <li class="side_article_list_item">7. <a href="http://hk.javashuo.com/article/p-wyhmolqj-xh.html" target="_blank" title="阿里P8內部絕密分享：運維真經K8S+Docker指南」，越啃越香啊，寶貝"> 阿里P8內部絕密分享：運維真經K8S+Docker指南」，越啃越香啊，寶貝 </a> </li> <li class="side_article_list_item">8. <a href="http://hk.javashuo.com/article/p-thohates-xh.html" target="_blank" title="本地iis部署mvc項目，問題與總結"> 本地iis部署mvc項目，問題與總結 </a> </li> <li class="side_article_list_item">9. <a href="http://hk.javashuo.com/article/p-hvwfftin-xh.html" target="_blank" title="InterService+粘性服務+音樂播放器"> InterService+粘性服務+音樂播放器 </a> </li> <li class="side_article_list_item">10. <a href="http://hk.javashuo.com/article/p-tckgpmzh-xh.html" target="_blank" title="把tomcat服務器配置爲windows服務的方法"> 把tomcat服務器配置爲windows服務的方法 </a> </li> </ul> </div> </div> <div class="operate_zone"> <div id="right_site_articles" class="article_detail_bg margin-top10"> <div class="article-part-title"> <span><a href="/contact" target="_blank">本站公眾號</a></span> </div> <div class="side_article_list user-head"> <span style="color: #5ba607;font-size:14px;"> 歡迎關注本站公眾號,獲取更多信息</span><br/> <img src="http://open.weixin.qq.com/qr/code?username=develong"/> </div> </div> <div id="right_site_articles"> <div class="article-part-title"> <span>相關文章</span> </div> <ul class="side_article_list"> <li class="side_article_list_item">1. <a href="http://hk.javashuo.com/article/p-nlcihnue-g.html" target="_blank" title="淺談css的僞元素::after和::before"> 淺談css的僞元素::after和::before </a> </li> <li class="side_article_list_item">2. <a href="http://hk.javashuo.com/article/p-qdabaojq-hm.html" target="_blank" title="CSS僞類元素：after ：before"> CSS僞類元素：after ：before </a> </li> <li class="side_article_list_item">3. <a href="http://hk.javashuo.com/article/p-mghaxgpy-gb.html" target="_blank" title="css僞元素 ::after ::before"> css僞元素 ::after ::before </a> </li> <li class="side_article_list_item">4. <a href="http://hk.javashuo.com/article/p-alwthhzn-qz.html" target="_blank" title="css僞元素after、before"> css僞元素after、before </a> </li> <li class="side_article_list_item">5. <a href="http://hk.javashuo.com/article/p-kopzyqob-ox.html" target="_blank" title="CSS的僞元素::after和::before"> CSS的僞元素::after和::before </a> </li> <li class="side_article_list_item">6. <a href="http://hk.javashuo.com/article/p-xzklilyc-qz.html" target="_blank" title="CSS 的::before 和 ::after 僞元素用法"> CSS 的::before 和 ::after 僞元素用法 </a> </li> <li class="side_article_list_item">7. <a href="http://hk.javashuo.com/article/p-crfojnuk-ox.html" target="_blank" title="css的僞元素::after和::before"> css的僞元素::after和::before </a> </li> <li class="side_article_list_item">8. <a href="http://hk.javashuo.com/article/p-bnkegcaq-u.html" target="_blank" title="css before和after僞元素應用"> css before和after僞元素應用 </a> </li> <li class="side_article_list_item">9. <a href="http://hk.javashuo.com/article/p-plrqccdc-cy.html" target="_blank" title="CSS ::before 和 ::after 僞元素進階"> CSS ::before 和 ::after 僞元素進階 </a> </li> <li class="side_article_list_item">10. <a href="http://hk.javashuo.com/article/p-rshigusf-hg.html" target="_blank" title="CSS ::before 和 ::after 僞元素用法"> CSS ::before 和 ::after 僞元素用法 </a> </li> </ul> <div style='padding-left:10px;font-size:14px;padding-bottom:10px;'> <a href='http://hk.javashuo.com/relative/p-dvhybwqv-mz.html' target='_blank' title="淺談css的僞元素::after和::before 的相關文章"> >>更多相關文章<< </a> </div> </div> </div> </div> </div> <script type="text/javascript"> $('table').each(function (i) { var size = $(this).children().size(); if (size > 1) { $(this).attr('class', "table table-bordered"); } else if (size == 1) { var e11 = $(this).children(":first"); var e1 = e11[0]; var name = e1.nodeName.toLowerCase(); if ("tbody" == name) { if (e1.children.length > 1) { $(this).attr('class', "table table-bordered"); } else if (e1.children.length == 1) { var e12 = e1.children[0]; var name2 = e12.nodeName.toLowerCase(); if ("tr" == name2) { if (e12.children.length > 1) { $(this).attr('class', "table table-bordered"); } } } } } }); window.page = 0; window.last = 0; window.first = true; resize_article_image('#nei', 550); + (function($){ window._bd_share_config = { common: { "bdText": "【" + $("title").text() + "】" + $(".post-content p:lt(2)").text(), "bdMini": "2", "bdMiniList": false, "bdPic": $(".post-content img:first") ? $(".post-content img:first").attr("src") : "", "bdStyle": "0", "bdSize": "24" }, share: [{ bdCustomStyle: 'http://static2.javashuo.com/static/css/share.css' }], }; with(document) 0[(getElementsByTagName("head")[0] || body).appendChild(createElement("script")).src = "http://bdimg.share.baidu.com/static/api/js/share.js?cdnversion=" + ~ ( - new Date() / 36e5)]; })(window.jQuery); </script> </div> <script type="text/javascript" src="http://static2.javashuo.com/static/plugin/highlight/highlight.pack.js"></script> <link href="http://static2.javashuo.com/static/plugin/highlight/styles/docco.css" media="screen" rel="stylesheet" type="text/css" /> <script type="text/javascript"> $('pre').each(function(i, e) { hljs.highlightBlock(e, "<span class='indent'> </span>", false) }); </script> <div class="footer"> <div class="footer-inner" style="padding-top: 50px;padding-bottom: 50px"> <a href="http://hk.javashuo.com/contact" target="_blank">聯繫我們</a> <a href="http://hk.javashuo.com/search">最近搜索</a> <a href="http://hk.javashuo.com/recent">最新文章</a> <script type="text/javascript" src="https://v1.cnzz.com/z_stat.php?id=1279585947&web_id=1279585947"></script> <a href="https://beian.miit.gov.cn/" target="_blank">沪ICP备13005482号-10</a> <a href="http://www.voidme.com/mybatis" target="_blank">MyBatis教程</a> <a href="http://www.voidme.com/sql" target="_blank">SQL 教程</a> <a href="http://www.voidme.com/mysql" target="_blank">MySQL教程</a> <a href="http://www.voidme.com/java" target="_blank">Java 教程</a> <a href="http://www.voidme.com/thymeleaf" target="_blank">Thymeleaf 教程</a> <a href="http://www.voidme.com/hibernate" target="_blank">Hibernate教程</a> <a href="http://www.voidme.com/spring" target="_blank">Spring教程 </a> <a href="http://www.voidme.com/redis" target="_blank">Redis教程 </a> </div> <div style="display:none;"> <script> var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?2936bf9a19a3d5abb5c9c726af070b7c"; var s = document.getElementsByTagName("script")[0]; s.parentNode.insertBefore(hm, s); })(); </script> </div> </div> <script type="text/javascript" src="http://static2.javashuo.com/static/script/tip.js?time=1735430479762" async></script> </body> </html>