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