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