CSS3默认样式详解：基础设置与常用属性

@charset "utf-8";
body, textarea, input, select, option {font-size: 12px; color: #333; font-family: Arial, "΢ÈíÑźÚ", Tahoma, sans-serif;}
h1, h2, h3, h4, h5, h6, input, textarea, select {font-size: 100%;font-weight: normal;}
body, h1, h2, h3, h4, h5, h6, blockquote, ol, ul, dl, dd, p, textarea, input, select, option, form {margin: 0;}
ol, ul, li, textarea, input, select, option, th, td {padding: 0;}
table {border-collapse: collapse;}
ol, ul {list-style-type: none;}
.clears:before, .clears:after {content: '';display: table;}
.clears:after {clear: both;}
.clears {*zoom:1;}
.clear {clear: both;overflow: hidden;}
a {text-decoration: none;color: #333;}
a, textarea, input {outline: none}
textarea {overflow: auto;resize: none;}
.img img {display: block;}
a img {border: none;}
.z_index {position: fixed;_position: absolute;z-index: 999;display: none;}
label, label input {vertical-align: middle}
.fl {float: left;}
.fr {float: right;}
a:hover {text-decoration: none}
body {word-break: break-all;word-wrap: break-word;cursor: default;}
input[type="checkbox"], input[type="text"], input[type="submit"], input[type="number"], input[type="tel"], textarea, button {-webkit-border-radius: 0;border-radius: 0;-webkit-appearance: none;}
html, body, form, fieldset, p, div, h1, h2, h3, h4, h5, h6 {-webkit-text-size-adjust: none;}
.d_box {display: -moz-box;display: -webkit-box;display: box;-webkit-box-sizing: border-box;-moz-box-sizing: border-box;box-sizing: border-box;-webkit-box-flex: 1;-moz-box-flex: 1;box-flex: 1;width: 100%;}
html {font-size: 62.5%;}
body {font-size: 1.2rem;font-size: 12px;width: 100%;overflow-x: hidden;}
i, var {font-style: normal;}
.d_center {display: -webkit-box;display: -moz-box;display: box;-webkit-box-pack: center;-webkit-box-align: center;-moz-box-pack: center;-moz-box-align: center;box-pack: center;box-align: center;}
.d_boxflex {-webkit-box-flex: 1;-moz-box-flex: 1;-ms-box-flex: 1;box-flex: 1;display: block;}