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实例代码( Tip: 登录后体验更佳 )
运行代码 
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>页面标题(w3cschool.cn)</title>
</head>
<style>
    html{color:#000;background:#FFF;font-family:Microsoft YaHei,sans-serif,Arial,'宋体';}
    body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,button,textarea,p,blockquote,th,td,strong{padding:0;margin:0;font-family:Microsoft YaHei,sans-serif,Arial;}
    table{border-collapse:collapse;border-spacing:0;} 
    fieldset,img{border:0;} 
    a{text-decoration:none;
    color:#; outline:none;}/*此处待添加默认链接颜色*/ 
    a:hover{text-decoration:none;color:#cb1114};
    var,em,strong{font-style:normal;} 
    address,caption,cite,code,dfn,em,strong,th,var, optgroup{font-style:inherit;font-weight:inherit;} 
    del,ins{text-decoration:none;} 
    li{list-style:none;} 
    caption,th{text-align:left;}
    h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal;} 
    q:before,q:after{content:'';} 
    abbr,acronym{border:0;font-variant:normal;} 
    sup{vertical-align:baseline;} 
    sub{vertical-align:baseline;} 
    legend{color:#000;} 
    input,button,textarea,select,optgroup,option{font-family:inherit; font-size:inherit;font-style:inherit;font-weight:inherit;} 
    input,button,textarea,select{*font-size:100%;} 
    .clear {clear:both;height:0px;overflow:hidden;} 
    body{-webkit-user-select:none;-webkit-text-size-adjust:none;-webkit-transform-style:preserve-3d;} 
    *{-webkit-tap-highlight-color:rgba(0,0,0,0);} /*form 从此处起为表单的样式处理*/ 
    form{width:430px;margin:20px auto 0;} 
    div{ 
    width:430px; 
    height:40px; 
    line-height:40px; 
    clear:both; 
    word-spacing:-1em;/*调整文本，以防止使用两端对齐之后字间距过大*/ 
 
 
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运行结果
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