Element block pseudo-class :hover generated with display block cursor default font-size 16px float none box-sizing content-box line-height 1 margin 0px border-radius outline none background padding 31px transition width 100px box-shadow height 100px position relative transform opacity 1 z-index auto font-weight normal text-shadow 0px 0px 20px rgba(255,255,255, 0.5) border 2px rgba(0,150,255,0.91) solid overflow visible