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