can't change h1 font-size in print preview

Issue I can’t change h1 font-size in print preview. although every other property works, the font size doesn’t work. body{ margin: 1%; padding:1%; background-color: rgba(0,0,255,.2); font-size: 100%; min-width: 500px; } header, footer{ background-color:#0066FF; padding: 1%; margin: 1%; } header h1{

Continue reading