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