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