Element block pseudo-element :before generated with z-index auto transform overflow hidden border 0px rgba(0,0,0,1) solid box-sizing border-box line-height 2 float none display block background cursor default font-weight normal transition text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-shadow 1px 1px 1px rgba(0,0,0,0.3) font-size 16px border-radius position static margin 0px padding 20px width 300px height 300px