.thumb-list { margin: 0 auto 20px auto; }
.thumb-list-item {
    display: table;
    margin: 30px auto;
    max-width: 100%;
}
.thumb-img, .thumb-text {
    display: table-cell;
    vertical-align: top;
}
.thumb-img { width: 20%; }
.thumb-img img {
    max-width: 150px;
    height: auto;
}
.thumb-img a:hover img { opacity: 0.8; }
.thumb-text {
    padding: 0 0 20px 20px;
    width: 80%;
}
@media only screen and (min-width: 0px) and (max-width: 768px) {
    .thumb-list-item, .thumb-img { display: block; }
    .thumb-img, .thumb-text { width: 100%; }
    .thumb-img {
        text-align: center;
        margin: 0 0 30px 0;
    }
    .thumb-img img { max-width: none; }
}