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