*{
}

.content {
    height: calc(100% - 4.5rem);
    overflow: auto;
    padding: 0 1.5rem;
}

button{
    border:none;
    outline:none;
    background-color:transparent;
}

.xhj_space {
    text-align: center;
}
html, body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-size: 14px;
}
@media screen and (max-width:320px) {
    html {
        font-size: 12px;
    }
}

@media screen and (min-width:321px) and (max-width:750px ) {
    html {
        font-size: 14px;
    }
}

@media screen and (min-width:751px ) {
    html {
        font-size: 16px;
    }
}
body {
    margin: 0;
}

.xhj_top {
    position: relative;
    left: 0;
    top: 0;
    right: 0;
    color: #fff;
    font-size: 1.32rem;
    background-color: #3C8EFE;
    height: 4.5rem;
    line-height: 4.5rem;
    text-align: center;
}
.xhj_back {
    position: absolute;
    left: 0;
    width: 3rem;
    height: 100%;
    border: none;
    outline: none;
    background: center center no-repeat url(../img/xhj_back.png);
    background-size: 1.3rem 1.3rem;
}