Element block pseudo-element :before generated with border-radius box-shadow 1px 1px 1px rgba(0,0,0,0.3) background transition overflow hidden font-weight normal transform margin 0px font-size 16px box-sizing content-box height 40px display block z-index position static width 100% line-height 1 cursor default padding 0px border 0px rgba(0,0,0,1) solid float none text-shadow 1px 1px 1px rgba(0,0,0,0.2)