.bg-black {background: #000000;}
.paralax {background-image: url('../img/vizualizace-1.jpg');}

.icon-bar {position: fixed; z-index: 9999; top: 70%; right: 0px; -webkit-transform: translateY(-70%); -ms-transform: translateY(-70%); transform: translateY(-70%);}
.nav-link {font-weight: 400; color: #666;}

.img-menu {flex-flow: row wrap;  display: flex;}
.img-menu a {-webkit-box-flex: auto; -ms-flex: auto; flex: auto; text-align: center;}
.img-menu img {width: 250px !important;}