css清除默认样式和设置公共样式

/*公共样式--开始*/ html, body, div, ul, li, h1, h2, h3, h4, h5, h6, p, dl, dt, dd, ol, form, input, textarea, th, td, select { margin: 0; padding: 0; } *{box-sizing: border-box;} html, body { min-height: 10

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