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