*{
    margin: 0;
    padding: 0;
}

a{
    text-decoration: none;
}

li{
    list-style: none;
}

input{
    outline: none;
    border: none;
}

.pop_mask{
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    right: 0;
    background: rgba(0,0,0,0.5);
}

.pop_inner{
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
}