*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    font-family: "-apple-system,Helvetica Neue,Helvetica,Arial,PingFang SC,Hiragino Sans GB,WenQuanYi Micro Hei,Microsoft Yahei,sans-serif ";
    color: #333;
    font-size: 14px;
    -ms-text-size-adjust: 100%;
    -webkit-text-size-adjust: 100%;
    -moz-osx-font-smoothing: grayscale;
    -webkit-font-smoothing: antialiased;
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;

}
.clear{
    clear:both;
}
a{
    text-decoration: none;
    color: #333333;
    font-size: 15px;
}
a:hover, a:active, a:visited, a:link{
    text-decoration: none;
}

.b{
    font-weight: bold;
}

li{
    list-style: none;
}

h1,h2,h3,h4,h5,h6{
    font-weight: normal;
    margin: 0;
}

.pull-right{
    float: right;
}

.pull-left{
    float: left !important;
}

.text-left{
    text-align: left !important;
}

.text-center{
    text-align: center !important;
}

.text-right{
    text-align: right !important;
}

.font20{
    font-size: 20px;
}

.font18{
    font-size: 18px;
}

.mar-tw{
    margin-top: 30px;
}
.mar-tm{
    margin-top: 20px;
}
.mar-tn{
    margin-top: 10px;
}
.show{
    display: block !important;
}
.hide{
    display: none !important;
}

button{
    outline: none;
}
h2, h3 {
    color: #333;
}
h6, p {
    color: #999;
}
i,em{
    font-style: normal;
}
.mistake_contain {
    position: absolute;
    top: 50%;
    margin-top: -100px;
    text-align: center;
    left: 0;
    right: 0;
}
.mistake_contain .mistake {
    display: inline-block;
    border-radius: 6px;
    background-color: black;
    opacity: 0.7;
    color: white;
    height: 40px;
    line-height: 40px;
    padding: 0 30px;
    font-size:16px;
}