body {
    width: 100%;
    height: 100%;
}

html {
    width: 100%;
    height: 100%;
}

@media(min-width:767px) {
    .navbar {
        padding: 20px 0;
        -webkit-transition: background .5s ease-in-out,padding .5s ease-in-out;
        -moz-transition: background .5s ease-in-out,padding .5s ease-in-out;
        transition: background .5s ease-in-out,padding .5s ease-in-out;
    }

    .top-nav-collapse {
        padding: 0;
    }
}

.intro-section {
    height: 100%;
    padding-top: 150px;
    text-align: center;
    background: #fff;
}

.about-section {
    height: 100%;
    padding-top: 150px;
    text-align: center;
    background: #eee;
}

.services-section {
    height: 100%;
    padding-top: 150px;
    text-align: center;
    background: #fff;
}

.contact-section {
    height: 100%;
    padding-top: 150px;
    text-align: center;
    background: #eee;
}

li.dropdown:hover > .dropdown-menu {
    display: block;
}