*{
    margin: 0;
    padding: 0;
}
body{
    max-width: 540px;
    min-width: 320px;
    margin: 0 auto;
    font: normal 14px/1.5 Tahoma, "Lucida Grande", Verdana, "Microsoft Yahei", STXihei, hei;
    color: #000;
    /* background: #f2f2f2; */
    overflow-x: hidden;
    -webkit-tap-highlight-color: transparent;
}
ul{
    list-style: none;
}
a{
    text-decoration: none;
    color: #333;
}
div{
    box-sizing: border-box;
}
.top img{
    width: 100%;
    opacity: 0.7;
}
.down{
    text-align: center;
    margin: 20px;
}
.down button{
    font-size: 14px;
    border: 0;
    background: -webkit-linear-gradient(left,#385DC7,#546AAA);
    border-radius: 100px;
    padding: 10px 20px;
    color: #fff;
    outline: none;
}
.down a{
    color: #5269AC;
}
.text{
    text-align: center;
    margin-top: 20px;
    color: #909090;
}

.hidden{
    display: none;
}