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