{"id":141,"date":"2014-07-11T15:13:35","date_gmt":"2014-07-11T07:13:35","guid":{"rendered":"https:\/\/yanjingang.com\/blog\/?p=141"},"modified":"2016-01-12T15:13:49","modified_gmt":"2016-01-12T07:13:49","slug":"css%e6%a0%b7%e5%bc%8f%e9%80%89%e6%8b%a9%e7%ac%a6%e4%bc%98%e5%85%88%e7%ba%a7%ef%bc%88%e6%9d%83%e9%87%8d%ef%bc%89%e9%97%ae%e9%a2%98","status":"publish","type":"post","link":"https:\/\/yanjingang.com\/blog\/?p=141","title":{"rendered":"CSS\u6837\u5f0f\u9009\u62e9\u7b26\u4f18\u5148\u7ea7\uff08\u6743\u91cd\uff09\u95ee\u9898"},"content":{"rendered":"
CSS\u4f18\u5148\u7ea7\u7684\u56db\u5927\u539f\u5219\uff1a<\/strong><\/div>\n

\u539f\u5219\u4e00\uff1a \u7ee7\u627f\u4e0d\u5982\u6307\u5b9a<\/strong><\/span><\/p>\n

\u5982\u679c\u67d0\u6837\u5f0f\u662f\u7ee7\u627f\u6765\u7684\u6c38\u8fdc\u4e0d\u5982\u5177\u4f53\u6307\u5b9a\u7684\u4f18\u5148\u7ea7\u9ad8\u3002
\n\u4f8b\u5b501\uff1a
\nCODE:
\n<style type=”text\/css”>
\n<!–
\n*{font-size:20px}
\n.class3{ font-size: 12px; }
\n–>
\n<\/style>
\n<span class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span><\/p>\n

\u8fd0\u884c\u7ed3\u679c\uff1a.class3{ font-size: 12px; }<\/p>\n

\u4f8b\u5b502\uff1a<\/p>\n

CODE:
\n<style type=”text\/css”>
\n<!–
\n#id1 #id2{font-size:20px}
\n.class3{font-size:12px}
\n–>
\n<\/style><\/p>\n

<div id=”id1″ class=”class1″>
\n<p id=”id2″ class=”class2″> <span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p>
\n<\/div><\/p>\n

\u8fd0\u884c\u7ed3\u679c\uff1a.class3{ font-size: 12px; }<\/p>\n

\u6ce8\u610f\uff1a\u540e\u9762\u7684\u51e0\u5927\u539f\u5219\u90fd\u662f\u5efa\u7acb\u5728\u201c\u6307\u5b9a\u201d\u7684\u57fa\u7840\u4e0a\u7684\u3002<\/p>\n

\u539f\u5219\u4e8c\uff1a #ID > .class > \u6807\u7b7e\u9009\u62e9\u7b26<\/strong><\/span><\/p>\n

\u4f8b\u5b50\uff1a
\nCODE:
\n<style type=”text\/css”>
\n<!–
\n#id3 { font-size: 25px; }
\n.class3{ font-size: 18px; }
\nspan{font-size:12px}
\n–>
\n<\/style><\/p>\n

<span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span><\/p>\n

\u8fd0\u884c\u7ed3\u679c\uff1a#id3 { font-size: 25px; }<\/p>\n

\u539f\u5219\u4e09\uff1a\u5305\u542b\u8d8a\u5177\u4f53\u8d8a\u5f3a\u5927\u3002<\/strong><\/span><\/p>\n

\u89e3\u91ca\uff1a\u5f53\u5bf9\u67d0\u4e2a\u5143\u7d20\u7684CSS\u9009\u62e9\u7b26\u6837\u5f0f\u5b9a\u4e49\u7684\u8d8a\u5177\u4f53\uff0c\u5c42\u7ea7\u8d8a\u660e\u786e\uff0c\u8be5\u5b9a\u4e49\u7684\u4f18\u5148\u7ea7\u5c31\u8d8a\u9ad8\u3002
\nCODE:
\n<style type=”text\/css”>
\n<!–
\n.class1 .class2 .class3{font-size: 25px;}
\n.class2 .class3{font-size:18px}
\n.class3 { font-size: 12px; }
\n–>
\n<\/style><\/p>\n

<div class=”class1″>
\n<p class=”class2″> <span class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p>
\n<\/div><\/p>\n

\u8fd0\u884c\u7ed3\u679c\uff1a.class1 .class2 .class3{font-size: 25px;}<\/p>\n

\u539f\u5219\u56db\uff1a\u6807\u7b7e#id >#id ; \u6807\u7b7e.class > .class<\/span><\/strong><\/p>\n

\u4e0a\u9762\u8fd9\u6761\u539f\u5219\u5927\u5bb6\u5e94\u8be5\u4e5f\u90fd\u77e5\u9053\uff0c\u770b\u4f8b\u5b50
\nCODE:
\n<style type=”text\/css”>
\n<!–
\nspan#id3{font-size:18px}
\n#id3{font-size:12px}
\nspan.class3{font-size:18px}
\n.class3{font-size:12px}
\n–>
\n<\/style>
\n<span id=”id3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span>
\n<span class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span><\/p>\n

\u8fd0\u884c\u7ed3\u679c\uff1aspan#id3{font-size:18px} | span.class3{font-size:18px}<\/p>\n

\u5f88\u591a\u4eba\u4f1a\u6709\u8fd9\u6837\u7684\u7591\u95ee\uff0c\u4e3a\u4ec0\u4e48\u4e0d\u628a\u8fd9\u4e2a\u539f\u5219\u56db\u5f52\u5165\u539f\u5219\u4e00\u5f62\u6210\uff1a
\n\u3010 \u6807\u7b7e#ID > #ID > \u6807\u7b7e.class > .class >\u00a0\u6807\u7b7e\u9009\u62e9\u7b26 > \u901a\u914d\u7b26\u3011 \u5462\uff1f\u6216\u8005\u5c06 \u201c\u6807\u7b7e.class\u201d \u770b\u4f5c\u591a\u66f4\u4e3a\u5177\u4f53\u7684 \u201c.class\u201d \u4ece\u800c\u5f52\u5165\u539f\u5219\u4e8c\u5462\uff1f\u540e\u9762\u6211\u5c06\u89e3\u7b54\u5404\u4f4d\u7684\u7591\u60d1\uff0c\u8fd9\u5c31\u6d89\u53ca\u5230CSS\u7684\u89e3\u6790\u89c4\u5f8b———\u8fd9\u56db\u5927\u539f\u5219\u95f4\u4e5f\u662f\u6709\u4f18\u5148\u7ea7\u7684\uff0c\u662f\u4e0d\u662f\u6709\u4e9b\u7cca\u6d82\u4e86\uff1f\u522b\u6025\uff0c\u7ee7\u7eed\u770b\u3002<\/p>\n

*\u56db\u5927\u539f\u5219\u7684\u6743\u91cd<\/p>\n

\u76f8\u4fe1\u5f88\u591a\u4eba\u90fd\u77e5\u9053\u4e0a\u9762\u7684\u56db\u5927\u539f\u5219\uff0c\u4e0d\u8981\u4ee5\u4e3a\u77e5\u9053\u4e86\u8fd9\u56db\u5927\u539f\u5219\u5c31\u80fd\u5206\u8fa8css\u4e2d\u90a3\u6761\u4ee3\u7801\u662f\u8d77\u4f5c\u7528\u7684\uff0c\u4e0d\u4fe1\uff1f\u90a3\u4f605\u79d2\u5185\u80fd\u80af\u5b9a\u7684\u77e5\u9053\u4e0b\u9762\u8fd9\u6bb5\u4ee3\u7801\uff0c\u6d4b\u8bd5\u4e2d\u7684\u6587\u5b57\u7684\u5b57\u53f7\u5417\uff1f
\nCODE:
\n<style type=”text\/css”>
\n<!–
\n.class1 p#id2 .class3{font-size:25px}
\ndiv .class2 span#id3{font-size:18px}
\n#id1 .class3{font-size:14px}
\n.class1 #id2 .class3{font-size:12px}
\n#id1 #id2{font-size:10px}
\n–>
\n<\/style>
\n<div id=”id1″ class=”class1″>
\n<p id=”id2″ class=”class2″> <span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p>
\n<\/div>
\n\u4e3a\u4e86\u5927\u5bb6\u65b9\u4fbf\u9605\u8bfb\uff0c\u6211\u53bb\u6389\u4e86\u4e00\u4e9b\u4ee3\u7801\u3002<\/p>\n

\u56db\u5927\u539f\u5219\u7684\u6743\u91cd\u5c31\u662f: \u539f\u5219\u4e00 > \u539f\u5219\u4e8c > \u539f\u5219\u4e09 > \u539f\u5219\u56db<\/strong><\/span><\/p>\n

\u89e3\u91ca\uff1a<\/p>\n

\u9996\u5148\u9075\u5faa\u539f\u5219\u4e00<\/p>\n

\u6709\u6307\u5b9a\u5f00\u59cb\u4f7f\u7528\u4e0b\u9762\u7684\u539f\u5219\uff0c\u65e0\u6307\u5b9a\u5219\u7ee7\u627f\u79bb\u4ed6\u6700\u8fd1\u7684\u5b9a\u4e49\u3002<\/p>\n

\u7136\u540e\u5f00\u59cb\u539f\u5219\u4e8c<\/p>\n

1\u3001\u6bd4\u8f83\u6700\u9ad8\u4f18\u5148\u7ea7\u7684\u9009\u62e9\u7b26
\n\u4f8b\u5b50\uff1a
\nCODE:
\n<style type=”text\/css”>
\n<!–
\n#id3{font-size:18px}
\n.class1 .class2 .class3{font-size:12px}
\n.class3{font-size:18px}
\ndiv p span{font-size:12px}
\n–>
\n<\/style>
\n<div id=”id1″ class=”class1″>
\n<p id=”id2″ class=”class2″> <span id=”id3″\u00a0class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p>
\n<\/div>
\n\u8fd0\u884c\u7ed3\u679c\uff1a#id3{font-size:18px}<\/p>\n

\u5220\u6389\u4e0a\u9762CSS\u4e2d\u7684\u524d\u4e24\u884c\u53ef\u4ee5\u5f97\u51fa\uff0c\u5982\u679c\u6ca1\u6709\u6700\u9ad8\u7ea7\u522b\u7684#ID\u4f1a\u5bfb\u627e.class \u5373\u4f7f\u540e\u9762\u7684CSS\u6309\u7167\u201c\u539f\u5219\u4e8c\u201d \u63cf\u8ff0\u7684\u518d\u5177\u4f53\u4e5f\u65e0\u6cd5\u7a81\u7834\u539f\u5219\u4e00\u3002
\n2\u3001\u5982\u679c\u4e24\u6761CSS\u7684\u5982\u679c\u6700\u9ad8\u9009\u62e9\u7b26\u4f18\u5148\u7ea7\u4e00\u6837\uff0c\u5219\u6bd4\u8f83\u4ed6\u4eec\u7684\u6570\u91cf
\n\u4f8b\u5b50\uff1a
\nCODE:
\n<style type=”text\/css”>
\n<!–
\n.class1 #id3{font-size:12px}
\n.class1 .class2 #id3{font-size:14px}
\n–>
\n<\/style>
\n<div id=”id1″ class=”class1″>
\n<p id=”id2″ class=”class2″> <span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p>
\n<\/div>
\n\u8fd0\u884c\u7ed3\u679c:.class1 .class2 #id3{font-size:14px}
\n3\u3001\u5982\u679c\u6700\u9ad8\u9009\u62e9\u7b26\u7ea7\u522b\u548c\u6570\u91cf\u90fd\u4e00\u6837\uff0c\u5219\u6309\u7167\u539f\u5219\u4e8c\u6bd4\u8f83\u4ed6\u4eec\u4e0b\u4e00\u7ea7\uff0c\u4ee5\u6b64\u7c7b\u63a8\u3002
\n\u4f8b\u5b501\uff1a
\nCODE:
\n<style type=”text\/css”>
\n<!–
\n#id1 .class2 .class3{font-size:14px}
\ndiv .class2 #id3{font-size:12px}
\n–>
\n<\/style>
\n<div id=”id1″ class=”class1″>
\n<p id=”id2″ class=”class2″> <span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p><\/p>\n

\u8fd0\u884c\u7ed3\u679c:#id1 .class2 .class3{font-size:14px}
\n*\u6700\u9ad8\u7ea7\u9009\u62e9\u7b26\u7684\u4f4d\u7f6e\u6ca1\u6709\u9ad8\u4e0b\u4e4b\u5206\uff0c\u8bba\u8bc1\uff1a
\nCODE:<style type=”text\/css”><!–#id1 .class2 .class3{font-size:18px}.class1 #id2 .class3{font-size:14px}.class1 .class2 #id3{font-size:12px}–><\/style><div id=”id1″ class=”class1″><p id=”id2″ class=”class2″> <span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p><\/div>\u4e0a\u4f8b\u4e2d\u66f4\u63623\u6761CSS\u7684\u5148\u540e\u53ef\u4ee5\u5f97\u51fa\uff0c\u54ea\u6761\u4f4d\u4e8e\u6700\u540e\uff0c\u54ea\u6761\u8d77\u4f5c\u7528\u3002\u8bf4\u660e\u4ed6\u4eec\u7684\u7ea7\u522b\u4e00\u6837\uff0c\u540e\u9762\u7684\u5c06\u8986\u76d6\u524d\u9762\u7684\u3002*\u5c06\u539f\u5219\u56db\u5f52\u5165\u539f\u5219\u4e8c\u7684\u4e0d\u5408\u7406\u6027\uff0c\u8bba\u8bc1\uff1aCODE:<style type=”text\/css”><!–.class1 span#id3{font-size:14px}#id1 .class2 .class3{font-size:12px}–><\/style><div id=”id1″ class=”class1″><p id=”id2″ class=”class2″> <span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p><\/div>#id1 .class2 .class3{font-size:12px}\u53ef\u4ee5\u770b\u5230span#id3\u5e76\u4e0d\u6bd4#id1\u9ad8\u51fa\u4e00\u4e2a\u7ea7\u522b\u3002\u65e0\u7ed3\u679c\u5f00\u59cb\u539f\u5219\u4e09\u5982\u679c\u6bd4\u8f83\u7ed3\u679c\uff0c\u9009\u62e9\u7b26\u4ece\u6700\u9ad8\u7ea7\u5f00\u59cb\u90fd\u5bf9\u5e94\uff0c\u7ea7\u522b\u4e0a\u7684\u6570\u91cf\u4e5f\u76f8\u540c\uff0c\u5219\u5f00\u59cb\u6bd4\u8f83\u8c01\u66f4\u5177\u4f53\u3002\u4f8b\u5b50\uff1aCODE:<style type=”text\/css”><!–#id1 .class2 span{font-size:14px}.class1 #id3{font-size:12px}–><\/style><div id=”id1″ class=”class1″><p id=”id2″ class=”class2″> <span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p><\/div>#id1 .class2 span{font-size:14px}\u5f53\u7136\u4e5f\u53ef\u4ee5\u7406\u89e3\u4e3a\u5728\u539f\u5219\u4e8c\u5c42\u5c42\u6bd4\u8f83\u4e2d\u201c\u5c11\u4e00\u4e2a\u5c42\u7ea7\u7684\u6837\u5f0f\u201d\uff0c\u7f3a\u5c11\u7684\u90a3\u4e2a\u5c42\u7ea7\u6ca1\u6709\u201c\u5c42\u7ea7\u8f83\u591a\u7684\u6837\u5f0f\u201d\u591a\u51fa\u7684\u90a3\u4e2a\u5c42\u7ea7\u7684\u7ea7\u522b\u9ad8\u3002\uff08\u7ed5\u53e3\u4ee4\uff09*\u5c06\u539f\u5219\u56db\u5f52\u5165\u539f\u5219\u4e09\u7684\u4e0d\u5408\u7406\u6027\uff0c\u8bba\u8bc1\uff1aCODE:<style type=”text\/css”><!–.class2 .class3{font-size:14px}span.class3{font-size:12px}–><\/style><div id=”id1″ class=”class1″><p id=”id2″ class=”class2″> <span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p><\/div>\u4e0a\u4f8b\u4e2d\u53ef\u4ee5\u770b\u51fa\uff0c\u5982\u679c\u5c06\u539f\u5219\u56db\u5e76\u5165\u539f\u5219\u4e09\uff0c\u5c06span.class3\u770b\u4f5c\u4e24\u5c42\uff0c\u90a3\u4e48\u5e94\u8be5\u548c.class2 .class3\u5c42\u7ea7\u4e00\u6837\u591a\uff0c\u90a3\u4e48\u5e94\u8be5\u663e\u793a12px,\u800c\u4e8b\u5b9e\u4e0d\u662f\u8fd9\u6837\u3002\u6700\u7ec8\u5bf9\u51b3\u539f\u5219\u56db\u5982\u679c\u8fd8\u5206\u4e0d\u51fa\u7ed3\u679c\uff0c\u5219\u5f00\u59cb\u539f\u5219\u56db\u7684\u6bd4\u8f83\uff1a\u4f8b\u5b501\uff1aCODE:<style type=”text\/css”><!–.class1 p.class2 .class3{font-size:14px}.class1 .class2 .class3{font-size:12px}–><\/style><div id=”id1″ class=”class1″><p id=”id2″ class=”class2″> <span id=”id3″ class=”class3″>\u6211\u662f\u591a\u5927\u5b57\u53f7\uff1f<\/span> <\/p><\/div>.class1 p.class2 .class3{font-size:14px}<\/p>\n","protected":false},"excerpt":{"rendered":"

CSS\u4f18\u5148\u7ea7\u7684\u56db\u5927\u539f\u5219\uff1a \u539f\u5219\u4e00\uff1a \u7ee7\u627f\u4e0d\u5982\u6307\u5b9a \u5982\u679c\u67d0\u6837\u5f0f\u662f\u7ee7\u627f\u6765\u7684\u6c38\u8fdc\u4e0d\u5982\u5177\u4f53\u6307\u5b9a\u7684\u4f18\u5148\u7ea7\u9ad8\u3002 \u4f8b\u5b501\uff1a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[118],"tags":[119,120],"_links":{"self":[{"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/141"}],"collection":[{"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=141"}],"version-history":[{"count":0,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=\/wp\/v2\/posts\/141\/revisions"}],"wp:attachment":[{"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=141"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=141"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/yanjingang.com\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=141"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}