Element block pseudo-class :hover generated with border-radius opacity 1 margin 100px outline none text-shadow 1px 1px 1px rgba(0,0,0,0.2) float none box-shadow 1px 1px 1px rgba(0,0,0,0.3) padding 20px z-index auto display block transition background font-size 16px line-height 1 border 0px rgba(0,0,0,1) solid position static width 160px font-weight normal height auto transform cursor default overflow hidden box-sizing content-box