* {
    margin: 0;
    padding: 0;
}

#c {
    /* background: url("./img/space_stars_bg.jpg") no-repeat center center; */
    background: black;
    background-size: cover;
}

.speed-controls {
    position: fixed;
    top: 20px;
    left: 20px;
    background: rgba(0, 0, 0, 0.7);
    color: white;
    padding: 10px;
    border-radius: 8px;
    max-height: 90vh;
    overflow-y: auto;
    font-family: sans-serif;
}

.speed-controls input {
    width: 150px;
    margin-bottom: 10px;
}


.btn-wrapper {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    position: fixed;
    bottom: 5px;
    left: 2%;
    width: 120px;
}

.btn {
    background: white;
    color: black;
    font-weight: bold;
    font-size: 15px;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    border: none;
    -webkit-touch-callout: none;
    /* iOS Safari */
    -webkit-user-select: none;
    /* Safari */
    -khtml-user-select: none;
    /* Konqueror HTML */
    -moz-user-select: none;
    /* Old versions of Firefox */
    -ms-user-select: none;
    /* Internet Explorer/Edge */
    user-select: none;
    outline: none;
    cursor: pointer;
}

#msg {
    position: absolute;
    background: transparent;
    color: white;
    font-weight: bold;
    font-size: 20px;
    text-align: center;
    font-family: sans-serif;
    margin: 0 auto;
}

.btn-zoom {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 40px;
    left: 10px;
    height: 120px;
    justify-content: space-between;
}

.quality-select {
    position: fixed;
    top: 20px;
    right: 5px;
}