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