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