html,body,header, #intro, #virtual {
    height: 100%;
}


#intro{
    background: url('../img/bg-1.jpg') no-repeat center center fixed;
    -webkit-background-size: cover;
    background-size: cover;

}
.top-nav-collapse{
    background-color: black;
}   

@media (max-width: 992px) {
    .navbar:not(.top-nav-collapse){
        background-color: black;
    }

    #intro {
        margin-top: 60px;
    }
}

#virtual{
    background: url('../img/bg-2.jpg') no-repeat center center;
    -webkit-background-size: cover;
    background-size: cover;
    height: 100%;
}

#overlay {
    background: white;
    opacity: 0.5;
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    user-select: none;
}

#overlay:hover {
    cursor: pointer;
}

.dd-it:hover{
    background-color: #303030;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
}

.contact-form__error{
    font-size: 10pt;
    color: red;
}

.fixed-btn{
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
}