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