.cases-list-box{
    padding: 30px 0;
    display: block;
    width: 1600px;
    max-width: 100%;
    margin: 0 auto;
    background-color: #FFF;
}

.cases-list {
    width: 25%;
    padding: 0 15px;
    box-sizing: border-box;
    margin-bottom: 30px;
}
.cases-list a{
    display: block;
    position: relative;
}
.fancybox-arrow-left{
    position: absolute;
    font-size: 24px;
    color: #FFF;
    top: calc(50% - 20px);
    left: calc(50% - 550px);
    letter-spacing: 2px;
    transition: all .5s ease;
    z-index: 1;
}
.fancybox-arrow-right{
    position: absolute;
    font-size: 24px;
    color: #FFF;
    top: calc(50% - 20px);
    right: calc(50% - 550px);
    letter-spacing: 2px;
    transition: all .5s ease;
    z-index: 1;
}