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