#slides {
    position: relative;
    width: 650px;
    height: 450px;
    display: flex;
    background: #e5e5e5;
}
#slides img {
    margin: auto auto;
    display: none;
    line-height: normal;
 }
 #slides .prev,
 #slides .next {
    position: absolute;
    height: 36px;
    width: 20px;
    z-index: 3;
    line-height: normal;
    top: 50%;
 }
 #slides .prev {
    background: url("/image/arrow_left.png") no-repeat;
    left: 13px;
 }
 #slides .next {
    background: url("/image/arrow_right.png") no-repeat;
    right: 13px;
 }
 
#slides .showing {
    display: block;
}

@media only screen and (max-device-width: 800px) and (min-device-width: 320px) {
    #content .node__content .field-name-body #slides img {
        width: auto !important;
        max-width: 100% !important;
        min-width: auto !important;
    }
    #slides {
        width: 100%;
    }
}