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