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