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