* {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.navbar {
    background-color: #333;
    overflow: hidden;
    padding: 90px 10px;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 99;
    transition: 0.4s;
}

.navbar a {
    float: left;
    color: #0081cb;
    text-align: center;
    padding: 12px;
    text-decoration: none;
    font-size: 18px;
    line-height: 25px;
    border-radius: 4px;
}

.nav-bar-right {
    float: right;
}

.nav-bar-right a:hover {
    background-color: #0081cb;
    color: #fff;
}

.navbar #logo {
    font-size: 35px;
    font-weight: bold;
    transition: 0.4s;
}

.main {
    margin-top: 250px;
    height: 2000px;
}

@media screen and (max-width: 580px) {
    .navbar {
        padding: 20px 10px !important;
    }
    .navbar a {
        display: block;
        text-align: left;
        float: none;
    }
    .nav-bar-right {
        float: none;
    }
}