audio-player { --background: radial-gradient(circle, rgba(8,5,34,1) 3%, rgba(9,3,62,1) 34%, rgba(15,62,109,1) 57%, rgba(69,130,191,1) 82%, rgba(146,172,226,1) 100%); color: white; } body { font-family: sans-serif; } header { margin-bottom: 5rem; } h3 { font-size: 1.5rem; } main { margin: auto; width: 45rem; }