ul.navbar {
    list-style-type: none;
    margin: 0;
    margin-right: 245px;
    padding: 0;
    overflow: hidden;
    background-color: #50C878;
}
.homepage .navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
}
.hobby .navbar {
    position: fixed;
    top: 0;
    left: 0;
    /*margin-top: 20px;*/
    width: 100%;
    z-index: 1000;
}
.homepage header {
    padding-top: 60px;
    text-align:center;
}
.navitem {
    float: left;
}
.navitem a { 
    display: block;
    color: black;
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

.navitem a:hover:not(.active) {
    background-color: #AFB3C5;
}

Body {
    font-family: Helvetica;
    background-color: #E6F4EA;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.main-content {
    margin-right: 260px;
    padding: 20px;
}
.hobby header {
    padding-top: 50px;
}
.sidebar {
    width: 250px;
    height: 100vh;
    position: fixed;
    right: 0;
    bottom: 0;
    background: #2B4F4F;
    padding-top: 20px;
    color: white;
    margin-left: 20px;
    margin-top: 0;
    top: 50px;
}

.sidebar ul {
    padding:0;
    margin:0 0 25px 0;
    list-style:none;
    /*background: white;
    border:2px solid #2D6A6A;
    border-radius: 0 0 8px 8px;
     */
}
.hobby .sidebar {
    position: fixed;
    right: 0;
    padding-top: 0;
}
.sidebar li {
    display:block;
    margin: 0 0 1px 0;
    padding:0;
}
.sidebar li a {
    display: block;
    width:100%;
    padding: 10px;
    color: white;
    text-decoration:none;
    background: #2D6A6A;
    transition: background 0.3s ease;
}

.sidebar li a:hover {
    background: #1ABC9C;

}
h3 {
    text-align: center;
}