a, .btn, #btt, .slick-next, .slick-prev{transition:all 0.25s; -moz-transition:all 0.25s; -webkit-transition:all 0.25s; -o-transition:all 0.25s;}
a:hover, .btn:hover, #btt:hover, .slick-prev:hover, .slick-next:hover{opacity:0.6;}
#btt{cursor:pointer;}
.neb-button > a:hover{background-color:#303030; opacity:1;}