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