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