Element button pseudo-class :active generated with margin 0px display block font-weight normal line-height 0 transform cursor default z-index auto padding 20px background float none box-sizing content-box height auto width 160px position relative border-radius box-shadow 1px 1px 1px rgba(0,0,0,0.3) text-shadow 1px 1px 1px rgba(0,0,0,0.2) font-size 20px border 1px rgba(0,0,255,0.5) solid transition overflow hidden