.button-red a {background-color: #880000!important;}
.button-red a:hover, .button-red a:active {background-color: #920000!important;}
.four-thumbs .wpb_wrapper {
    position: relative;
    height: 100%;
}
.four-thumbs .align-bottom {
    position: absolute;
    bottom: 0;
    margin-bottom: -20px;
    width: 100%;
}
.four-thumbs .wpb_single_image, .four-thumbs .wpb_single_image img {margin-bottom:10px;}