#letter{
    width: 100px;
    height: 100px;
    border-radius: 5px;
    font-size: 75px;
    color: #555;
    text-align: center;
    line-height: 100px;
    background: rgba(145,145,145,0.6);
    position: fixed;
    left: 50%;
    top: 50%;
    margin:-50px 0px 0px -50px;
    z-index: 99;
    display: none;
}
#letter img{
    width: 50px;
    height: 50px;
    float: left;
    margin:25px 0px 0px 25px;
}
.sort_box{
    width: 100%;
    /*padding-top: 45px;*/
    overflow-y: auto;
}
.sort_list{
    padding-left: 20px;
    position: relative;
    height: 40px;
    line-height: 40px;
    border-bottom:1px solid #ddd;
}

.sort_list .num_logo{
    width: 50px;
    height: 50px;
    border-radius: 10px;
    overflow: hidden;
    position: absolute;
    top: 5px;
    left: 20px;
}
.sort_list .num_logo img{
    width: 50px;
    height: 50px;
}
.sort_list .num_name{
    color: #000;
}

.sort_letter{
    height: 30px;
    line-height: 30px;
    padding-left: 20px;
    color:#787878;
    font-size: 14px;
    border-bottom:1px solid #ddd;
}
.initials{
    position: absolute;
    top: 8rem;
    right: 24px;
    height: 100%;
    width: 15px;
    padding-right: 10px;
    text-align: center;
    font-size: 12px;
    z-index: 99;
    background: rgba(145,145,145,0);
}

.initials li{
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.initials li img{
    width: 14px;
}