html height 100% font-family "Ubuntu", "Trebuchet MS", sans-serif font-size 105% body tab-size 4 overflow hidden height 100% color text-color background-color bg-color a color link-color text-decoration none default-transition :hover color link-hover-color text-decoration none :active transform translateY(3px) // &.active // color link-active-color img backface-visibility hidden .hidden display none !important .text-center text-align center .spacer flex 1