.controls {
    position: absolute;
    bottom: 5px;
    left: 0;
    width: 100px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    border-radius: 3px;
    opacity: 0;
    transition: opacity 0.3s;
}

.footer-video-div:hover .controls {
    opacity: 1;
}

.btn {
    border: none;
    background: none;
    text-decoration: none;
    color: white;
    font-size: 20px;
    cursor: pointer;
}

.volume-control {
    width: 100px;
    margin: 0 10px;
}

.volume-control::-webkit-slider-runnable-track {
    width: 100%;
    height: 5px;
    cursor: pointer;
    background: rgb(255, 255, 255);
    border-radius: 5px;
}

.volume-control::-webkit-slider-thumb {
    height: 15px;
    width: 15px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
    -webkit-appearance: none;
    margin-top: -5px;
}

.volume-control::-moz-range-track {
    width: 100%;
    height: 5px;
    cursor: pointer;
    background: rgb(100, 100, 100);
    border-radius: 5px;
}

.volume-control::-moz-range-thumb {
    height: 15px;
    width: 15px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
}

.volume-control::-ms-track {
    width: 100%;
    height: 5px;
    cursor: pointer;
    background: transparent;
    border-color: transparent;
    border-width: 6px 0;
    color: transparent;
}

.volume-control::-ms-fill-lower {
    background: white;
    border-radius: 5px;
}

.volume-control::-ms-fill-upper {
    background: white;
    border-radius: 5px;
}

.volume-control::-ms-thumb {
    height: 15px;
    width: 15px;
    border-radius: 50%;
    background: white;
    cursor: pointer;
}