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