Youtube Music Desktop custom CSS - Compact song list in playlists/albums/mixes

ytmd.css

#secondary {
	width: 75% !important;
	max-width: unset !important;
	ytmusic-responsive-list-item-renderer {
		--ytmusic-responsive-list-item-thumbnail-size: 24px !important;
		--ytmusic-responsive-list-item-padding: 2px !important;
		--ytmusic-list-item-height: 24px !important;
		.title-column {
			flex-basis: auto !important;
			flex: 12 1 0 !important;
			margin: 0 1rem 0 0 !important;
		}
		.flex-columns {
			flex-direction: row !important;
			align-items: center;
			.secondary-flex-columns {
				yt-formatted-string::before {
					margin: 0 1rem !important;
				}
			}
		}
		.fixed-columns > yt-formatted-string {
			width: auto !important;
		}
		yt-button-shape > button {
			height: 16px;
			width: 16px;
			margin: 0;
		}
		yt-icon {
			height: 16px !important;
			width: 16px !important;
		}
	}
	#contents {
		margin-bottom: 2rem !important;
	}
}

#primary {
	width: 25% !important;
	margin: 0 4rem 0 0 !important;
}