Element block pseudo-class :active generated with height auto box-sizing content-box margin 0px z-index auto line-height 1 transform text-shadow 1px 1px 1px rgba(0,0,0,0.2) border 0px rgba(0,0,0,1) solid width 160px padding 20px float none font-weight normal font-size 16px cursor default overflow hidden background position static transition box-shadow 1px 1px 1px rgba(0,0,0,0.3) display block border-radius