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