* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

html {
    font-size: 42.5%;
}

body {
    font-family: 'Poppins', 'Montserrat', sans-serif;
    background-color: #aaaa00;
    background: rgb(0, 0, 0);
    justify-content: top;
    align-items: left;
    height: 1px;
    -webkit-tap-highlight-color: transparent;
}

.container {
    width: 524px;
}

@media (max-width:512px) {
    .container {
        width: 512px;
    }
}

.heading {
    color: #fff;
    text-align: center;
    font-size: 22px;
    font-weight: 600;
}

.music-container {
    background: rgb(17, 7, 7);
    padding: 1rem 1rem;
    margin-top: 1rem;
    display: flex;
    flex-direction: column;
    justify-content: top;
    align-items: top;
    color: #fff;
}

#cover-box {
    border-radius: 1rem;
    box-shadow: 0px 0px 8px rgba(0, 0, 0, 0.4);
    position: relative;
    bottom: 1em;
    width: 512px;
    height: 256px;
}

#cover {
    border-radius: inherit;
    display: block;
    height: 256px;
    width: 512px;
    object-fit: cover;
    object-position: top;
}

#music-box {
    width: 512px;
}

#music-info {
    text-align: center;
    width: 512px;
    position: relative;
    bottom: 2rem;
}

#title {
    font-size: 26px;
    font-weight: 600;
}

#artist {
    font-size: 26px;
    font-weight: 500;
}

#progress-container {
    height: 7px;
    width: 500px;
    background-color: rgb(255 255 255 / 33%);
    margin: 1rem 0 1rem;
    cursor: pointer;
    border-radius: 8px;
}

#progress {
    background-color: #000;
    width: 0%;
    height: inherit;
    border-radius: inherit;
    transition: width 100ms ease-in;
}

#timer-bar {
    display: flex;
    justify-content: space-between;
    font-size: 1.7rem;
}

#control-box {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.btn {
    display: inline-block;
    font-size: 66px;
    padding: 22px;
    cursor: pointer;
    border: none;
    outline: none;
    border-radius: 4rem;
    color: #a0a0a0;
    transition: background 200ms linear, color 200ms linear;
}

.special-btn {
    background-color: #000;
    color: #fff;
    font-size: 66px;
    margin: 0 1rem;
    padding: 22px;
    cursor: pointer;
    border: none;
    outline: none;
    border-radius: 4rem;
    transition: opacity 200ms linear;
}

@media (hover: hover) {
    .btn:hover {
        background-color: #d8d8d8;
        color: #545454;
    }
    .special-btn:hover {
        opacity: 0.75;
    }
}