@charset "UTF-8";

.btn-music {
    width: 2rem;
    height: 2rem;
    background-color: transparent;
    position: fixed;
    top: 1.5rem;
    right: 1.5rem;
    z-index: 999;
    border: 0.125rem solid #fff;
    border-radius: 50%;
    padding: 0;
    animation: btnMusicAni 3s infinite linear;
    i {
        width: 2rem;
        height: 2rem;
        text-align: center;
        line-height: 2rem;
        color: #fff;
        font-size: 1rem;
        position: absolute;
        top: -0.125rem;
        left: -0.125rem;
    }
    &.paused {
        opacity: 0.4;
        animation: none;
    }
}

@keyframes btnMusicAni {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}