<!DOCTYPE html><html><head><title>CSS Borders: border-right-width: medium equals 3px</title><linkrel="help"href="https://drafts.csswg.org/css-backgrounds-3/#border-width"><linkrel="match"href="reference/border-right-width-3px-ref.html"><metaname="assert"content="The 'thin' keyword for 'border-right-width' is 3px."/><style>div{display:inline-block;height:100px;}.red-if-too-thin{width:3px;background:red;}.cb{position:relative;}.red-if-too-thick{width:20px;background:red;}.overlap-red-if-too-thick{width:20px;background:white;position:absolute;left:0;}.border-test{border-right-style:solid;border-right-width:medium;margin-left:-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>