.box-container {
    display: inline-block;
    margin: 0;
    padding: 0;
    margin-top: 1.4em;
    width: 100%;
}

ul {
    margin-left: 1em;
    margin-bottom: 0;
}
ol, ul {
    list-style: none;
}

li {
    margin-bottom: 10px;
}

.box {
    list-style-type: none;
    float: left;
    transform: translate3d(0, 40px, 0);
    transition: opacity 0.2s, transform 0.35s;
}

.box.show {
    opacity: 1;
    transform: translate3d(0, 0, 0);
    transition: opacity 0.4s, transform 0.35s;
}

.box .inner {
    padding: 10px;
    position: relative;
}

.box a {
    display: block;
   /* width: 100%;*/
    height: auto;
    position: relative;
    overflow: hidden;
}

.box img {
    width: calc(100% + 50px);
    max-width: calc(100% + 50px);
    transition: opacity 0.35s, transform 0.35s;
    transform: translate3d(-40px, 0, 0);
}

.box a::before {
    content: '';
    display: block;
    /*width: 100%;*/
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    background: #000;
    z-index: 99;
    opacity: 0;
    transition: opacity 0.4s;
}

.three-cols .box {
   /* width: 100%;*/
}

.four-cols .box {
    width: 23.1%;
}

.four-cols .box:nth-child(4n+0) {
    margin-right: 0;
}

.four-cols .box:nth-child(4n+1) {
    clear: both;
    margin-left: 0;
}

@media (min-width: 992px) {
    .box:hover img {
        transform: translate3d(0, 0, 0);
        transition: opacity 0.35s, transform 0.35s;
    }

    .box:hover a::before {
        opacity: 0.3;
        transition: opacity 0.5s;
    }
}