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