.ss_progress{height: 24px;background-color:#c4c5c6;}
.ss_progress .progress-bar{background:#1E70B9;}
.ss_progress .progress-bar span{
    position: absolute;
    width: 100%;
    color: #fff;
}
@media only screen and (max-width:640px){
    .ss_progress{position: relative;}
}