#case .slick-track{display:-webkit-box;display:-ms-flexbox;display:flex}
#case .slick-prev:before{
    content:none;
    content: "〈";
    position: absolute;
    left: -22px;
    padding: 20px 9px 20px 0px;
    font-size: 48px;
    background: rgba(255, 255, 255, 0.5);
    background: #132A5A;
    position: absolute;
    top: 25%;
    color: #ffffff;
    opacity: 1;
}
#case .slick-next:before{
    content:none;
    content: "〉";
    position: absolute;
    right: -22px;
    padding: 20px 0px 20px 8px;
    font-size: 48px;
    background: rgba(255, 255, 255, 0.5);
    background: #132A5A;
    top: 25%;    
    color: #ffffff;
    opacity: 1;
}


@media screen and (min-width: 0px) and (max-width: 1200px){
    #case .slick-prev{width:60px;height:60px;left:0;}
    #case .slick-next{width:60px;height:60px;right:0;}
}