body {
background:#222;
color:#ccc;
}

.container{
display: flex;
justify-content: center;
align-items: center;
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}

audio {
width: 1000px;
}

.m3u-player--left, .m3u-player--right, .m3u-player--title {
font-size: 200%;
appearance: none;
}

.m3u-player--left, .m3u-player--right {
cursor: pointer;
position: absolute;
top: 31px;
}

.m3u-player--left {
margin-left: auto;
left: -44px;
}

.m3u-player--right {
margin-right: auto;
right: -44px;
}

.m3u-player--title {
margin: auto;
}

button {
width: 40px;
}