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