html,body{width:100%; height: auto;}*{-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box}header, footer, article, aside,nav, section,dialog, figure, legend{display: block;}html,body,header,main,footer,div,ul,li,h1,h2,h3,h4,h5,p,input,textarea{margin:0;padding:0;-webkit-margin-before:0;-webkit-margin-after:0;}li{list-style:none}a{text-decoration:none;}/*主要是为了解决iphone中的submit的问题*/input[type="submit"],input[type="button"],input[type="reset"], button{    -moz-appearance:none;-webkit-appearance:none;appearance:none;}select,input,textarea{outline:0;border:0;background:0;}