.mf-bar-spacer { display: block; overflow: hidden; position: relative; &.mf-bar-spacer-regular { height: 30px; } &.mf-bar-spacer-large { height: 50px; } } .mf-bar-collapser-icon { opacity: 0.3; text-decoration: none; transition-property: all; transition-duration: .5s; transition-timing-function: cubic-bezier(0, 1, 0.5, 1); &:hover { opacity: 0.7; text-decoration: none; } }