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