.fading-5{background:linear-gradient(-45deg,#0000 40%,#fcfcfc33,#0000 66.6667%) 100% 100%/350% 100% no-repeat;transition:all .5s linear,background-size 0s .5s}.fading-5:hover{background-position:0 100%;background-size:0 0}.hide-nav{transition:all 1s ease-in-out;top:0}.show-nav{transition:all 1s ease-in-out;top:-100%}