.sub dl {margin-bottom:50px;}
.sub dl dt{font-size:20px;margin-bottom:5px;font-weight:bold;}
.sub dl dt::before {
    display: inline-block;
    content: '';
    width: 20px;
    height: 20px;
    background: url(/app/dubu_sourcecode/docs/imgs/1537497015_1481613576_bu_h3.png) no-repeat 50% 50%;
    background-size: auto 100%;
    border-radius: 50%;
    vertical-align: middle;
    margin-right: 5px;
    margin-bottom:2px;
}
.sub dl dd{font-size:16px;line-height:1.8}

/* tablet */
@media screen and (min-width:769px) and (max-width:991px){
}

/* mobile */
@media screen and (max-width:768px){
}