dl.horizontal {
    width: 100%;
    overflow: hidden;
    /*background: #ff0;*/
    padding: 0;
    margin: 0;
}
dl.horizontal dt {
    float: left;
    width: 140px;
    /*background: #cc0;*/
    padding: 0;
    margin: 0
}
dl.horizontal dd {
    float: left;
    
    /*background: #dd0;*/
    padding: 0;
    margin: 0
}

dl.horizontal input, dl.horizontal select {
    max-width: 100%;
}

.clearfix {
    clear: both;
}

.padding {
    padding: 15px;
}

@media screen and (max-width: 480px) {
    dl.horizontal dt {
        display: none;
    }
    dl.horizontal dd {
        width: 100%;
    }
}

@media screen and (min-width: 481px) {
    dl.horizontal dt {
        display: none;
    }
    dl.horizontal dd {
        width: 50%;
    }
}

@media screen and (min-width: 783px) {
    dl.horizontal dt {
        display: block;
        width: 140px;
    }
    dl.horizontal dd {
        width: calc(50% - 140px);
    }
}