css默认样式

html{font-family:"微软雅黑",Arial,sans-serif}

body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,form,fieldset,input,button,textarea,p,th,td{padding:0;margin:0;font-family:MicrosoftYaHei,sans-serif,Arial}

table{border-collapse:collapse;border-spacing:0}

fieldset,img{border:0}

a{text-decoration:none;color:#000;outline:none}

li{list-style:none}

caption,th{text-align:left}

h1,h2,h3,h4,h5,h6{font-size:100%;font-weight:normal}

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%}

/*上边距*/

.mt5{margin-top:5px;}

.mt10{margin-top:10px;}

.mt15{margin-top:15px;}

.mt20{margin-top:20px;}

.mt25{margin-top:25px;}

.mt30{margin-top:30px;}

.mt35{margin-top:35px;}

.mt40{margin-top:40px;}

.mt45{margin-top:45px;}

.mt50{margin-top:50px;}

.mt60{margin-top:60px;}

.mt70{margin-top:70px;}

.mt80{margin-top:80px;}

.mt90{margin-top:90px;}

.mt100{margin-top:100px;}

/*左边距*/

.ml5{ margin-left:5px;}

.ml10{margin-left:10px;}

.ml15{margin-left:15px;}

.ml20{margin-left:20px;}

.ml25{margin-left:25px;}

.ml30{margin-left:30px;}

.ml35{margin-left:35px;}

.ml40{margin-left:40px;}

.ml45{margin-left:45px;}

.ml50{margin-left:50px;}

.ml60{margin-left:60px;}

.ml70{margin-left:70px;}

.ml80{margin-left:80px;}

.ml90{margin-left:90px;}

.ml100{margin-left:100px;}

/*右边距*/

.mr5{ margin-right:5px;}

.mr10{margin-right:10px;}

.mr15{margin-right:15px;}

.mr20{margin-right:20px;}

.mr25{margin-right:25px;}

.mr30{margin-right:30px;}

.mr35{margin-right:35px;}

.mr40{margin-right:40px;}

.mr45{margin-right:45px;}

.mr50{margin-right:50px;}

.mr60{margin-right:60px;}

.mr70{margin-right:70px;}

.mr80{margin-right:80px;}

.mr90{margin-right:90px;}

.mr100{margin-right:100px;}

/*下边距*/

.mb5{ margin-bottom:5px;}

.mb10{margin-bottom:10px;}

.mb15{margin-bottom:15px;}

.mb20{margin-bottom:20px;}

.mb25{margin-bottom:25px;}

.mb30{margin-bottom:30px;}

.mb35{margin-bottom:35px;}

.mb40{margin-bottom:40px;}

.mb45{margin-bottom:45px;}

.mb50{margin-bottom:50px;}

.mb60{margin-bottom:60px;}

.mb70{margin-bottom:70px;}

.mb80{margin-bottom:80px;}

.mb90{margin-bottom:90px;}

.mb100{margin-bottom:100px;}