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