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