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