Element button pseudo-element :before generated with transition width 163px transform opacity 1.00 position static background margin 0px line-height 1 padding 20px border 0px rgba(0,0,0,1) solid float none box-sizing content-box overflow hidden font-weight normal text-shadow 1px 1px 1px rgba(0,0,0,0.2) font-size 16px display block cursor default z-index auto border-radius box-shadow height auto