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                ## counter-reset 屬性 ### 屬性定義及使用說明 counter-reset屬性創建或重置一個或多個計數器。 counter-reset屬性通常是和counter-increment屬性,content屬性一起使用。 JavaScript 語法:object.style.counterReset="subsection" * * * ## 屬性值 | 值 | 說明 | | :-- | :-- | | none | 默認。不能對選擇器的計數器進行重置 | | *id number* | id 定義重置計數器的選擇器、id 或 class。 number 可設置此選擇器出現次數的計數器的值。可以是正數、零或負數。 | | inherit | 規定應該從父元素繼承 counter-reset 屬性的值 | * * * ## 實例--對部分和子部分進行編號(比如 "Section 1"、"1.1"、"1.2")的方法: ``` <!DOCTYPE html> <html> <head> <style> body {counter-reset:section;} h1 {counter-reset:subsection;} h1:before { counter-increment:section; content:"Section " counter(section) ". "; } h2:before { counter-increment:subsection; content:counter(section) "." counter(subsection) " "; } </style> </head> <body> <p><b>Note:</b> IE8 supports these properties only if a !DOCTYPE is specified.</p> <h1>HTML tutorials</h1> <h2>HTML Tutorial</h2> <h2>XHTML Tutorial</h2> <h2>CSS Tutorial</h2> <h1>Scripting tutorials</h1> <h2>JavaScript</h2> <h2>VBScript</h2> <h1>XML tutorials</h1> <h2>XML</h2> <h2>XSL</h2> </body> </html> ```
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