Element block pseudo-element :before generated with cursor default border 72px rgba(0,0,0,1) solid overflow hidden padding 20px box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-weight normal transition font-size 16px line-height 1 float none text-shadow 1px 1px 1px rgba(0,0,0,0.2) margin 0px width 160px border-radius z-index auto position static background display block height auto transform box-sizing content-box