h4{font-size:1.25rem;font-weight:500;color:#444;margin-top:1rem;margin-bottom:.5rem}h5,h6{font-size:1rem;font-weight:500;color:#555;margin-top:.8rem;margin-bottom:.4rem}@media (max-width:768px){h4{font-size:1.1rem}h5,h6{font-size:.95rem}}