.btn-container {
    background-color: rgba(0, 0, 0, 0.5);
    /*background-color: #00000080;*/
    position: absolute;
    right: 0;
    bottom: 0;
    width: 220px;
    height: 60px;
    z-index: 10;
    padding: 10px 5px;
}

.manual-btn {
    /* position: absolute;
    top: 50%;
    width: 36px;
    height: 60px;
    margin-top: -30px;
    background-color: #000;
    opacity: 0.2;
    cursor: pointer;
    z-index: 3; */
    width: 50%;
    height: 70%;
    /*margin: 0;*/
    position: absolute;
    /*bottom: 0;*/
}

.manual-btn.manual-previous {
    /* left: 0; */
    left: 3px;
    background: url(./arrl.png) no-repeat;
    background-size: contain;
    /*border-right: 2px solid #ccc;*/
}

.manual-btn.manual-next {
    /* right: 0; */
    right: 3px;
    background: url(./arrr.png) no-repeat;
    background-size: contain;
    border-left: 2px solid #999;
}