.logo-class{
	width: 90px;
    z-index: 100;
    position: absolute;
    margin-left: -20px;
    top: -40px;
}


.header-nav {
    padding: 20px 0;
    border-top: 4px solid #12b5d9;
}

@media (max-width: 990px) {

    .logo-class{
        margin-left: 0px;
        top: -20px;
    }
    .header-nav .navbar-collapse{
        z-index: 101;
    }
}