/* custom app class */ .myapp-large-text { ... /* modifier class */ h4.myapp { ...
<h1>h1 heading text</h1> <h2>h2 heading text</h2> <h3>h3 heading text</h3> <h4>h4 heading text</h4> <h5>h5 heading text</h5> <h6>h6 heading text</h6>