Element block pseudo-class :hover generated with background box-shadow 1px 1px 1px rgba(0,0,0,0.3) transition border 6px rgba(0,0,0,0.58) solid border-radius transform margin 50% overflow hidden box-sizing content-box padding 20px position static line-height 1 float none z-index auto height auto cursor default font-size 16px width 160px display block font-weight normal text-shadow 1px 1px 1px rgba(0,0,0,0.2)