body {
    background-image:url(../img/login_bg.png);
    background-repeat: no-repeat;
    background-size: 100% 100%;
    width: 100%;
    height: 100%;
    color:#545454;
    background-color: #fff;
}
.login_option{
    width: 100%;
    height: 1.6rem;
    line-height: 1.5rem;
    border-bottom:1px solid #e6e6e6;
    margin-top: .8rem;
}
.login_option i{
    font-size: .8rem;
    color:#bcbcbc;
    padding-right: .5rem;
    padding-left: .3rem;
}
input::placeholder{
    color:#a9a9a9;
}
input{
    outline: none;
    border: none;
    width: 80%;
}
.login_btn{
    height: 1.8rem;
    line-height: 1.8rem;
    background: #44bbff;
    border-radius: 5rem;
    width: 100%;
    /*box-shadow: 0 8px 16px 0 rgba(0,0,0,0.2), 0 6px 20px 0 rgba(0,0,0,0.19);*/
    text-align: center;
    color:#fff;
    margin-top: 1.5rem;
    font-size: .7rem;
}
.login_content{
    margin-top: 15.5rem;
    overflow: hidden;
    padding-top: .4rem
}
@media only screen and (device-width: 375px) and (device-height: 812px) and (-webkit-device-pixel-ratio: 3) {
    .login_content{
        margin-top: 20rem;
        overflow: hidden;
        padding-top: .4rem
    }
}