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