<!DOCTYPE html><html><head><title>CSS Borders: border-top-width: medium equals 3px</title><linkrel="help"href="https://drafts.csswg.org/css-backgrounds-3/#border-width"><linkrel="match"href="reference/border-top-width-3px-ref.html"><metaname="assert"content="The 'medium' keyword for 'border-top-width' is 3px."/><style>.red-if-too-thin{height:3px;background:red;}.cb{position:relative;}.red-if-too-thick{height:20px;background:red;}.overlap-red-if-too-thick{height:20px;background:white;position:absolute;top:3px;width:100%;}.border-test{border-top-style:solid;border-top-width:medium;margin-top:-3px;}</style></head><body><p>There should be a black line below and no red.</p><divclass=red-if-too-thin></div><divclass=cb><divclass=border-test></div><divclass=red-if-too-thick></div><divclass=overlap-red-if-too-thick></div></div></body></html>
