main {
    margin: 60px auto;
    width: 680px;
}
.images {
    width: 100%;
    height: 100%;
}
.images img {
    width: 100%;
    margin-bottom: 20px;
}
dl.text {
    margin-top: 20px;
    overflow: hidden;
    zoom: 1;
}
dl {
    display: flex;
    flex-wrap: wrap;
}
dl dt {
    width: 140px;
    margin-bottom: 10px;
    font-weight: bold;
    color: #000000;
    font-size: 12px;
}
dl dd {
    width: 540px;
    margin-bottom: 10px;
    font-size: 12px;
    color: #5d5d5d;
    line-height:20px;
}
.url-text {
    text-decoration: underline;
    color: #000000;
}
/*  */
@media (max-width: 767px) { 
    main {
        margin: 60px auto;
        width: 100%;
    }
    .images {
        /* margin-top: 40px; */
        width: 100%;
    }
    .images img {
        width: 100%;
        margin: 5px 0;
    }
    dl.text {
        margin-top: 20px;
        overflow: hidden;
        zoom: 1;
    }
    .text dl {
        width: 100%;
    }
    .text dl dt {
        margin-bottom: 5px;
        font-weight: bold;
        color: #3b3b3b;
        font-size: 14px;
    }
    .text dl dd {
        margin-bottom: 20px;
        font-size: 12px;
        color: #5d5d5d;
        line-height:20px;
    }
}