Element block pseudo-element :after generated with margin 0px width 100px display block height 100px border 0px rgba(0,0,0,1) solid cursor default border-radius opacity 1 transition outline none z-index auto overflow hidden box-sizing content-box text-shadow 1px 1px 1px rgba(0,0,0,0.2) font-weight normal position static transform box-shadow 1px 1px 1px rgba(0,0,0,0.3) float none line-height 6 padding 20px background font-size 16px