html,
body {
    width: 7.5rem;
    height:100%;
    min-height: 6rem;
    overflow-x: hidden;
    overflow-y: auto;
    background-color: #fff;
}
.iconfont{
    font-size: 0.38rem;
    vertical-align: top;
    margin-right: .1rem;
}
.mst-header {
    width: 7.5rem;
    height: .9rem;
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10;
    border-bottom: 1px solid #ccc;
    background-color: #fff;
}
.mst-header .mst-nav {
    width: 6.6rem;
    height: .9rem;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.mst-header .mst-nav-item {
    font-size: .32rem;
    color: #010101;
}
.mst-container {
    margin-top: .9rem;
}