{"id":9789,"date":"2021-02-06T00:20:14","date_gmt":"2021-02-05T16:20:14","guid":{"rendered":"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9789"},"modified":"2021-02-06T00:20:14","modified_gmt":"2021-02-05T16:20:14","slug":"css-part-shadow-dom","status":"publish","type":"post","link":"https:\/\/www.zhangxinxu.com\/wordpress\/2021\/02\/css-part-shadow-dom\/","title":{"rendered":"\u4f7f\u7528::part\u4f2a\u5143\u7d20\u6539\u53d8Shadow DOM\u7684CSS\u6837\u5f0f"},"content":{"rendered":"<p>by <a href=\"https:\/\/www.zhangxinxu.com\/\">zhangxinxu<\/a> from <a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9789\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=9789<\/a><br \/>\n\u672c\u6587\u6b22\u8fce\u5206\u4eab\u4e0e\u805a\u5408\uff0c\u8bf7\u52ff\u5168\u6587\u8f6c\u8f7d\uff0c\u5c0a\u91cd\u7248\u6743\uff0c\u5708\u5b50\u5c31\u8fd9\u4e48\u5927\uff0c\u82e5\u6025\u7528\u53ef\u4ee5\u8054\u7cfb\u6388\u6743\u6216\u8d2d\u4e70\u7248\u6743\u3002<\/p>\n<p><script>window.wxShareImgUrl = 'https:\/\/www.zhangxinxu.com\/study\/image\/share\/202002-css-part.png';<\/script><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202102\/css-part-cover.png\" width=\"480\" height=\"315\" alt=\"css part\u4f2a\u5143\u7d20\u9a6c\u513f\u5f00\u5fc3\u8dd1\u5360\u4f4d\u56fe\" class=\"alignright clip thumb size-medium\" \/><\/p>\n<h3>\u4e00\u3001\u5386\u53f2-CSS\u53d8\u91cf\u7a7f\u8d8aShadow DOM<\/h3>\n<p>\u5f88\u65e9\u5c31\u5f00\u59cb\u5173\u6ce8\u5982\u4f55\u8ba9Shadow DOM\u5916\u90e8\u7684CSS\u4ee3\u7801\u6539\u53d8Shadow DOM\u91cc\u9762\u5143\u7d20\u7684\u6837\u5f0f\u3002<\/p>\n<p>\u4e00\u756a\u63a2\u67e5\u4e0b\u6765\uff0c\u53d1\u73b0\u5c31CSS\u53d8\u91cf\u6709\u7a7f\u900f\u7684\u4f5c\u7528\u3002<\/p>\n<p>\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u81ea\u5b9a\u4e49\u4e86\u4e00\u4e2a\u6309\u94ae\uff0c\u4e3a<code>&lt;ui-button&gt;<\/code>\u5143\u7d20\uff1a<\/p>\n<pre>&lt;ui-button&gt;\u6309\u94ae&lt;\/ui-button&gt;<\/pre>\n<p>\u4e3a\u4e86\u8fd8\u4fdd\u6301\u539f\u672c\u6309\u94ae\u65e0\u969c\u788d\u8bbf\u95ee\u7279\u6027\uff0c\u56e0\u6b64\u4f7f\u7528Shadow DOM\u63d2\u5165\u4e86\u4e00\u4e2a\u539f\u751f\u7684<code>&lt;button&gt;<\/code>\u6309\u94ae\uff0c\u5e76\u914d\u7f6e\u9ed8\u8ba4\u7684\u4e00\u4e9b\u6837\u5f0f\u3002\u76f8\u5173JavaScript\u4ee3\u7801\u5982\u4e0b\uff08\u5047\u8bbe<code>&lt;ui-button&gt;<\/code>\u5143\u7d20\u5bf9\u8c61\u662fbutton\uff09\uff1a<\/p>\n<pre>var shadow = button.attachShadow({ mode: 'closed' });\r\n<span class=\"green\">\/\/ Shadow DOM\u4e2d\u7684\u6837\u5f0f\u548c\u6309\u94ae <\/span>\r\nshadow.innerHTML = `&lt;style&gt;\r\nbutton {\r\n    padding: 9px 1em;\r\n    border: var(--ui-button-border, 1px solid #ccc);\r\n    border-radius: var(--ui-button-radius, 4px);\r\n    background-color: var(--ui-button-background, #fff);\r\n    color:  var(--ui-button-color, #333);\r\n}\r\n&lt;\/style&gt;\r\n&lt;button&gt;${button.textContent}&lt;\/button&gt;`;<\/pre>\n<p>\u6b64\u65f6\u7684Shadow DOM\u7ed3\u6784\u5982\u4e0b\u56fe\u6240\u793a\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202006\/8-2_shadow-dom-button.png\" loading=\"lazy\" width=\"541\" height=\"292\"><\/p>\n<p>\u6b64\u65f6\uff0c\u901a\u8fc7\u5728\u5916\u90e8\u8bbe\u7f6eCSS\u53d8\u91cf\u5c31\u53ef\u4ee5\u6539\u53d8Shadow DOM\u5185\u5143\u7d20\u7684\u6837\u5f0f\uff0c\u5047\u8bbe\u8bbe\u7f6e\u4e86\u5982\u4e0bHTML\u548cCSS\uff1a<\/p>\n<pre>&lt;ui-button type=\"primary\"&gt;\u6309\u94ae&lt;\/ui-button&gt;<\/pre>\n<pre>[type=\"primary\"] {\r\n    --ui-button-border: 1px solid transparent;\r\n    --ui-button-background: deepskyblue;\r\n    --ui-button-color: #fff;\r\n}<\/pre>\n<p>\u5219\u539f\u59cb\u6309\u94ae\u548c\u8bbe\u7f6eCSS\u81ea\u5b9a\u4e49\u5c5e\u6027\u6539\u53d8\u6837\u5f0f\u540e\u7684\u6309\u94ae\u5bf9\u6bd4\u6548\u679c\u5982\u4e0b\u6240\u793a\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202006\/8-3_shadow-dom-var-custom.png\" loading=\"lazy\" width=\"226\" height=\"125\"><\/p>\n<hr>\n<p>\u56e0\u6b64\uff0c\u5f88\u957f\u4e00\u6bb5\u65f6\u95f4\u5185\uff0c\u6211\u90fd\u4ee5\u4e3a\u76ee\u524d\u53ea\u6709CSS\u53d8\u91cf\u53ef\u4ee5\u7a7f\u900fShadow DOM\u6539\u53d8\u91cc\u9762\u7684\u6837\u5f0f\u3002<\/p>\n<p>\u540e\u6765\u7ecf<a href=\"https:\/\/github.com\/xboxyan\" rel=\"noopener\" target=\"_blank\">\u540c\u4e8b<\/a>\u63d0\u9192\uff0c\u6d4f\u89c8\u5668\u5df2\u7ecf\u652f\u6301\u4e86<code>::part<\/code>\u4f2a\u5143\u7d20\u3002<\/p>\n<p>\u6211\u4e00\u67e5\u770b\uff0c\u679c\u7136\uff0c\u77a7\u7740\u7eff\u6cb9\u6cb9\u7684\u4e00\u7247\uff0c\u662f\u4e0d\u662f\u6709\u91d1\u5c71\u94f6\u5c71\u7684\u611f\u89c9\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202102\/2021-02-05_004225.png\" width=\"559\" height=\"259\" alt=\"::part\u9009\u62e9\u5668\u517c\u5bb9\u6027\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u53ea\u8981\u4e3b\u6d41\u7248\u672c\u652f\u6301\uff0c\u5c31\u5df2\u7ecf\u53ef\u4ee5\u73a9\u8d77\u6765\u4e86\u3002<\/p>\n<p><span class=\"hidden\">\/\/zxx: \u5982\u679c\u4f60\u770b\u5230\u8fd9\u6bb5\u6587\u5b57\uff0c\u8bf4\u660e\u4f60\u73b0\u5728\u8bbf\u95ee\u662f\u4f53\u9a8c\u7cdf\u7cd5\u7684\u5783\u573e\u76d7\u7248\u7f51\u7ad9\uff0c\u4f60\u53ef\u4ee5\u8bbf\u95ee\u539f\u6587\u83b7\u5f97\u5f88\u597d\u7684\u4f53\u9a8c\uff1ahttps:\/\/www.zhangxinxu.com\/wordpress\/?p=9789\uff08\u4f5c\u8005\u5f20\u946b\u65ed\uff09<\/span><\/p>\n<h3>\u4e8c\u3001::part\u4f2a\u5143\u7d20\u8bed\u6cd5<\/h3>\n<p>CSS <code>::part<\/code>\u8fd9\u4e2a\u9009\u62e9\u5668\u5c31\u662f\u7528\u6765\u6539\u53d8Shadow DOM\u5143\u7d20\u6837\u5f0f\u7684\u3002<\/p>\n<p>\u8bed\u6cd5\u5982\u4e0b\uff1a<\/p>\n<pre>::part(xxxx)<\/pre>\n<p><code>xxxx<\/code>\u662fShadow DOM\u5143\u7d20\u7684<code>part<\/code>\u5c5e\u6027\u503c\u3002<\/p>\n<p>\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u4f8b\u5982\u4e0a\u9762CSS\u53d8\u91cf\u6539\u53d8\u81ea\u5b9a\u4e49\u5143\u7d20\u6837\u5f0f\u7684\u4ee3\u7801\u5982\u679c\u6539\u7528<code>::part<\/code>\u4f2a\u5143\u7d20\u5b9e\u73b0\u5c31\u53ef\u4ee5\u8fd9\u4e48\u5904\u7406\uff1a<\/p>\n<pre>class UiButton extends HTMLElement {\r\n    constructor() {\r\n        super();\r\n    }\r\n    connectedCallback () {\r\n        let shadow = this.attachShadow({ mode: 'closed' });\r\n        <span style=\"color:green;\">\/\/ Shadow DOM\u4e2d\u7684\u6837\u5f0f\u548c\u6309\u94ae<\/span>\r\n        shadow.innerHTML = `&lt;style&gt;\r\n            button {\r\n                padding: 9px 1em;\r\n                border: 1px solid #ccc;\r\n                border-radius: 4px;\r\n                background-color: #fff;\r\n                color: #333;\r\n            }\r\n        &lt;\/style&gt;\r\n        &lt;button <span style=\"color:#cd0000;\">part=\"button\"<\/span>&gt;${this.textContent}&lt;\/button&gt;`;\r\n    }\r\n};\r\n<span style=\"color:green;\">\/\/ \u6ce8\u518c<\/span>\r\ncustomElements.define('ui-button', UiButton);<\/pre>\n<p>\u6b64\u65f6\uff0c\u91cd\u7f6e\u6309\u94ae\u7684\u6837\u5f0f\u5c31\u65e0\u9700\u501f\u52a9CSS\u53d8\u91cf\u7a7f\u900f\u4e86\uff0c\u76f4\u63a5\u4f7f\u7528<code>::part<\/code>\u4f2a\u5143\u7d20\u5373\u53ef\uff0c\u793a\u610f\u5982\u4e0b\uff1a<\/p>\n<pre>&lt;ui-button title=\"by zhangxinxu\"&gt;\u6309\u94ae&lt;\/ui-button&gt;\r\n&lt;ui-button type=\"primary\"&gt;\u6309\u94ae - type=\"parimary\"&lt;\/ui-button&gt;<\/pre>\n<pre>[type=\"primary\"]<span style=\"color:#cd0000;\">::part(button)<\/span> {\r\n    border-color: transparent;\r\n    background-color: deepskyblue;\r\n    color: #fff;\r\n}<\/pre>\n<p>\u6548\u679c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202102\/2021-02-05_230532.png\" width=\"372\" height=\"201\" alt=\"::part\u4e0e\u6309\u94ae\u6837\u5f0f\u53d8\u5316\u622a\u56fe\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u773c\u89c1\u4e3a\u5b9e\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/202102\/css-part-button-demo.php\" rel=\"noopener\" target=\"_blank\">CSS ::part\u6539\u53d8\u6309\u94aeShadow DOM\u6837\u5f0fdemo<\/a><\/p>\n<p><span class=\"hidden\">\/\/zxx: \u5982\u60a8\u53d1\u73b0\u6587\u7ae0\u76d7\u7248\uff0c\u6b22\u8fce\u53cd\u9988\u6216\u5411\u5e73\u53f0\u4e3e\u62a5<\/span><\/p>\n<h3>\u4e09\u3001\u6df1\u5165&lt;slot&gt;\u4e0e\u6837\u5f0f\u8bbe\u7f6e\u7ec6\u8282<\/h3>\n<p>\u4f7f\u7528Shadow DOM\u5f00\u53d1\u81ea\u5b9a\u4e49\u5143\u7d20\u7ec4\u4ef6\u7684\u65f6\u5019\uff0c\u5e38\u5e38\u4f1a\u4f7f\u7528<code>&lt;slot&gt<\/code>\u5143\u7d20\u8fdb\u884c\u5360\u4f4d\uff0c\u6b64\u65f6\uff0c<code>&lt;slot&gt<\/code>\u5185\u90e8\u7684\u5143\u7d20\u6837\u5f0f\u662f\u5426\u53ef\u4ee5\u4f7f\u7528<code>::part<\/code>\u4f2a\u5143\u7d20\u8bbe\u7f6e\u5462\uff1f<\/p>\n<p>\u6211\u4eec\u76f4\u63a5\u770b\u4e00\u4e2a\u4f8b\u5b50\uff0c\u6b64\u4f8b\u5b50\u6e90\u81ea\u201c<a href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=7424\" rel=\"noopener\" target=\"_blank\">HTMLUnknownElement\u4e0eHTML5\u81ea\u5b9a\u4e49\u5143\u7d20<\/a>\u201d\u6700\u540e\u7684<code>&lt;zxx-info&gt;<\/code>\u81ea\u5b9a\u4e49\u5143\u7d20\u3002<\/p>\n<p>\u662f\u8fd9\u6837\u7684\uff0c\u7ec4\u4ef6\u6a21\u677fHTML\u5982\u4e0b\uff1a<\/p>\n<pre>&lt;template id=\"tplZxxInfo\"&gt;\r\n    &lt;style&gt;\r\n        :host { display: flow-root; }\r\n        img { float: left; margin-right: 10px; }\r\n        p { margin: .5em 0;}\r\n    &lt;\/style&gt;\r\n    &lt;img part=\"img\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/zxx_240_0818.jpg\"&gt;\r\n    <span style=\"color:#cd0000;\">&lt;slot name=\"description\" part=\"description\"&gt;\u8fd9\u662f\u663e\u793a\u63cf\u8ff0\u4fe1\u606f&lt;\/slot&gt;<\/span>\r\n&lt;\/template&gt;<\/pre>\n<p>\u5176\u4e2d\u63cf\u8ff0\u4fe1\u606f\u4f7f\u7528<code>&lt;slot&gt<\/code>\u5143\u7d20\u5360\u4f4d\uff0c\u5927\u5bb6\u53ef\u4ee5\u7406\u89e3\u4e3a\u201c\u66ff\u8eab\u4f7f\u8005\u201d\u3002<\/p>\n<p>\u7136\u540e\u9875\u9762\u4e2d\u7684CSS\u548cHTML\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n<pre><span style=\"color:green;\">\/* \u4e0b\u97623\u6bb5CSS\u8bed\u53e5\u54ea\u4e2a\u53ef\u4ee5\u5f71\u54cd\u6587\u5b57\u6837\u5f0f\u5462\uff1f *\/<\/span>\r\nzxx-info::part(description) {\r\n    color: deepskyblue;\r\n}\r\nzxx-info::part(description) p {\r\n    color: red;\r\n}\r\nzxx-info p {\r\n    border-bottom: 1px dashed;\r\n}<\/pre>\n<pre>&lt;zxx-info&gt;\r\n    &lt;p slot=\"description\"&gt;\u5f20\u946b\u65ed-\u946b\u7a7a\u95f4-\u946b\u751f\u6d3b&lt;\/p&gt;\r\n    &lt;p slot=\"description\"&gt;\u5e05\u9505\u4e00\u679a&lt;\/p&gt;\r\n    &lt;p slot=\"description\"&gt;\u6587\u5b57\u989c\u8272\u7ea2\u8272\u4e48\uff1f\u4e0b\u5212\u7ebf\u6709\u4e86\u4e48\uff1f&lt;\/p&gt;\r\n&lt;\/zxx-info&gt;<\/pre>\n<p>\u5176\u4e2d\uff0c\u5bf9\u4e8e<code>&lt;p&gt;<\/code>\u5143\u7d20\uff0c\u67094\u5904CSS\u90fd\u5c1d\u8bd5\u5bf9\u5176\u8fdb\u884c\u6837\u5f0f\u8bbe\u7f6e\uff0c\u5206\u522b\u662f\uff1a<\/p>\n<ol>\n<li>Shadow DOM\u4e2d\u7684<code>p { margin: .5em 0;}<\/code><\/li>\n<li>\u5916\u90e8CSS\u6837\u5f0f\u4e2d\u7684 <code>zxx-info::part(description)<\/code>\uff0c\u4e5f\u5373\u662f<code>&lt;slot&gt<\/code>\u5143\u7d20\uff0c\u8bf4\u4e0d\u5b9a\u989c\u8272\u53ef\u4ee5\u7ee7\u627f\u4e0b\u53bb\u3002<\/li>\n<li>\u5916\u90e8CSS\u6837\u5f0f\u4e2d\u7684 <code>zxx-info::part(description) p {}<\/code><\/li>\n<li>\u5916\u90e8CSS\u6837\u5f0f\u4e2d\u7684 <code>zxx-info p {}<\/code><\/li>\n<\/ol>\n<p>\u8bf7\u95ee\u5927\u5bb6\uff0c\u4e0a\u97624\u6bb5CSS\uff0c\u54ea\u4e9b\u662f\u53ef\u4ee5\u8ba9<code>&lt;zxx-info&gt;<\/code>\u4e2d\u7684\u6587\u5b57\u53d1\u751f\u6837\u5f0f\u53d8\u5316\u7684\uff1f<\/p>\n<h4>\u51fa\u4eba\u610f\u6599\u7684\u7ed3\u679c<\/h4>\n<p>\u7ed3\u679c\u662f\u7b2c2\u884c\u548c\u7b2c4\u884c\u7684\u9009\u62e9\u5668\u8bed\u53e5\u6709\u6548\u3002<\/p>\n<p>\u6700\u7ec8\u6837\u5f0f\u6548\u679c\u5982\u4e0b\u622a\u56fe\u6240\u793a\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202102\/2021-02-05_234352.png\" width=\"402\" height=\"244\" alt=\"\u989c\u8272\u6df1\u5929\u84dd\uff0c\u6709\u865a\u7ebf\u4e0b\u5212\u7ebf\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u6587\u5b57\u662f\u6df1\u5929\u84dd\u8272\uff0c\u8bf4\u660e<code>zxx-info::part(description)<\/code>\u53ef\u4ee5\u5f71\u54cd\u91cc\u9762\u6587\u5b57\uff0c\u540c\u65f6\u6587\u5b57\u6709\u4e0b\u5212\u865a\u7ebf\uff0c\u8bf4\u660e<code>zxx-info p<\/code>\u9009\u62e9\u5668\u7684\u5339\u914d\u662f\u6709\u6548\u7684\u3002<\/p>\n<p>\u773c\u89c1\u4e3a\u5b9e\uff0c\u60a8\u53ef\u4ee5\u72e0\u72e0\u5730\u70b9\u51fb\u8fd9\u91cc\uff1a<a href=\"https:\/\/www.zhangxinxu.com\/study\/202102\/css-shadow-dom-part-demo.php\" rel=\"noopener\" target=\"_blank\">CSS ::part\u4e0eShadow DOM slot\u6837\u5f0fdemo<\/a><\/p>\n<h4>\u6df1\u7a76slot\u7279\u6027<\/h4>\n<p>\u6211\u4eec\u6765\u6df1\u5165\u63a2\u7a76\u4e0b\u3002<\/p>\n<p>\u6b64\u65f6\uff0c<code>&lt;zxx-info&gt;<\/code>\u81ea\u5b9a\u4e49\u5143\u7d20\u7684\u5b8c\u6574DOM\u7ed3\u6784\u793a\u610f\u662f\u8fd9\u6837\u7684\uff1a<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202102\/2021-02-05_234642.png\" width=\"420\" height=\"273\" alt=\"slot\u5143\u7d20\u5c55\u5f00\u793a\u610f\" class=\"alignnone size-medium\" \/><\/p>\n<p>\u53ef\u4ee5\u770b\u5230\uff0c<code>&lt;slot&gt<\/code>\u5143\u7d20\u4e2d\u6709\u7070\u8272\u7684<code>&lt;p&gt;<\/code>\u5143\u7d20\uff08\u53c2\u89c1\u4e0a\u56fe\u533a\u57dfA\uff09\uff0c\u8fd9\u4e9b<code>&lt;p&gt;<\/code>\u5143\u7d20\u5927\u5bb6\u53ef\u4ee5\u7406\u89e3\u4e3a\u201c\u66ff\u8eab\u4f7f\u8005\u201d\uff0c\u201c\u672c\u4f53\u201d<code>&lt;p&gt;<\/code>\u5143\u7d20\u6b64\u65f6\u4f9d\u7136\u4f5c\u4e3a\u975eShadow 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{}<\/code>\u8fd9\u4e2a\u9009\u62e9\u5668\u8fdb\u884c\u5339\u914d\uff0c\u56e0\u6b64\uff0c<code>color:red<\/code>\u8bbe\u7f6e\u7ea2\u8272\u662f\u65e0\u6548\u7684\u3002<\/p>\n<p>\u867d\u7136\u65e0\u6cd5\u4f7f\u7528\u6807\u7b7e\u8fdb\u884c\u5339\u914d\uff0c\u4f46\u662f\uff0c\u5374\u53ef\u4ee5\u7ee7\u627f\u7956\u5148\u5143\u7d20\uff0c\u4e5f\u5c31\u662f\u53ef\u4ee5\u7ee7\u627f<code>&lt;slot&gt<\/code>\u5143\u7d20\u7684\u989c\u8272\u3001\u884c\u9ad8\uff0c\u5b57\u4f53\u7b49\u6837\u5f0f\uff0c\u56e0\u6b64\uff0c\u6700\u7ec8\u7684\u6587\u5b57\u989c\u8272\u662f\u53ef\u4ee5\u53d7\u4e0b\u9762CSS\u5f71\u54cd\u7684\uff0c\u6700\u7ec8\u8868\u73b0\u4e3a\u6df1\u5929\u84dd\u8272\uff1a<\/p>\n<pre>zxx-info::part(description) {\r\n    color: deepskyblue;\r\n}<\/pre>\n<p>\u81f3\u4e8e<code>zxx-info p{}<\/code>\u6709\u6548\uff0c\u5219\u662f\u56e0\u4e3a\u533a\u57dfB\u4e2d\u7684 <code>&lt;p&gt;<\/code> 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href=\"https:\/\/www.zhangxinxu.com\/wordpress\/?p=9789\">https:\/\/www.zhangxinxu.com\/wordpress\/?p=9789<\/a><\/p>\n<p>\uff08\u672c\u7bc7\u5b8c\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p><img decoding=\"async\" src=\"https:\/\/image.zhangxinxu.com\/image\/blog\/202102\/css-part-cover.png\" width=\"160\" height=\"105\" alt=\"css part\u4f2a\u5143\u7d20\u9a6c\u513f\u5f00\u5fc3\u8dd1\u5360\u4f4d\u56fe\" class=\"alignright size-medium\" loading=\"lazy\" \/><\/p>\n<p>\u8be6\u7ec6\u4ecb\u7ecdCSS ::part\u4f2a\u5143\u7d20\uff0c\u4ee5\u53ca\u548cShadow 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