Element button pseudo-class :active generated with margin 4px display inline-block border 1px #b7b7b7 solid position static font-weight normal overflow visible text-shadow 1px 1px 0px rgba(255,255,255,0.66) float none z-index auto border-radius box-shadow 2px 2px 2px rgba(0,0,0,0.2) background padding 20px transform cursor default width auto box-sizing content-box line-height normal height auto transition font-size 16px