Use CSS definition of line height #210

Job	Run time
cargo fmt	21s
cargo clippy (windows-latest)	1m 41s
cargo clippy (android) (armv7-linux-androideabi)	1m 1s
cargo check (msrv) (android) (armv7-linux-androideabi)	34s
cargo clippy (macos-latest)	40s
cargo doc (windows-latest)	1m 16s
cargo clippy (android) (aarch64-linux-android)	41s
cargo check (msrv) (android) (aarch64-linux-android)	34s
cargo clippy (ubuntu-latest)	36s
cargo doc (macos-latest)	18s
cargo clippy (android) (x86_64-linux-android)	1m 0s
cargo check (msrv) (android) (x86_64-linux-android)	29s
cargo doc (ubuntu-latest)	18s
cargo test (windows-latest)	1m 8s
cargo test (macos-latest)	29s
cargo test (ubuntu-latest)	17s
cargo check (msrv) (windows-latest)	1m 6s
cargo check (msrv) (macos-latest)	24s
cargo check (msrv) (ubuntu-latest)	19s
	13m 12s

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