happiness.css

/**********************/
/******** PAGE ********/
/**********************/

html, body {
    height: 100%;
}

html {
    background-color: #FFFF99;
}

body {
    width: 100%;
    font-family: sans-serif;
    margin: 0;
    background-color: #FFFF99;
}

h1 {
    padding-top: 8%;
    text-align: center;
}

/**********************/
/***** NAVIGATION *****/
/**********************/

nav {
    position: fixed;
}

.nav {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none
}

.navbar {
    position: relative;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-wrap: wrap;
    flex-wrap: wrap;
    -ms-flex-align: center;
    align-items: center;
    -ms-flex-pack: justify;
    justify-content: space-between;
    padding: .5rem 1rem;
    z-index: 10;
}

@media (min-width:992px) {
    .navbar-expand-lg {
        -ms-flex-flow: row nowrap;
        flex-flow: row nowrap;
        -ms-flex-pack: start;
        justify-content: flex-start
    }
    
    .navbar-expand-lg .navbar-nav {
        -ms-flex-direction: row;
        flex-direction: row
    }
    
    .navbar-expand-lg .navbar-nav .dropdown-menu {
        position: absolute
    }
    
    .navbar-expand-lg .navbar-nav .nav-link {
        padding-right: .5rem;
        padding-left: .5rem
    }
    
    .navbar-expand-lg>.container,
    .navbar-expand-lg>.container-fluid {
        -ms-flex-wrap: nowrap;
        flex-wrap: nowrap
    }
    .navbar-expand-lg .navbar-collapse {
        display: -ms-flexbox!important;
        display: flex!important;
        -ms-flex-preferred-size: auto;
        flex-basis: auto
    }
    .navbar-expand-lg .navbar-toggler {
        display: none
    }
}

.nav-item {
    margin-bottom: -1px;
    -ms-flex: 1 1 auto;
    flex: 1 1 auto;
    text-align: center;
    -ms-flex-preferred-size: 0;
    flex-basis: 0;
    -ms-flex-positive: 1;
    flex-grow: 1;
}

.nav-link {
    text-decoration: none;
    color: #000000;
    display: block;
    padding: .5rem 1rem;
}

.navbar-nav {
    display: -ms-flexbox;
    display: flex;
    -ms-flex-direction: column;
    flex-direction: column;
    padding-left: 0;
    margin-bottom: 0;
    list-style: none;
}

.nav-section {
    padding: 10px;
}

.navbar {
    overflow: hidden;
    background-color: #FDE452;
    position: fixed; /* Set the navbar to fixed position */
    top: 0; /* Position the navbar at the top of the page */
    width: 100%; /* Full width */
}

/* Links inside the navbar */
.navbar a {
    float: left;
    display: block;
    color: #000000;
    text-align: center;
    text-decoration: none;
}

.navbar-nav {
    width: 100%;
}

.nav-wrapper {
    display: block;
    width: 100%;
}