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