body {
    background-color: aliceblue;
    margin: 0;
}

.background {
    position: fixed;
    width: 100%;
    height: 100%;
    background-image: url('../images/napraforgo.png');
    background-repeat: round;
    background-attachment: fixed;
    opacity: 0.4;
    z-index: -1;
}

.header {
    width: 80%;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 140px;
    margin: 0 auto;
}

.header-bar {
    width: 100%;
    display: inline;
}

.psycho-logo {
    width: 140px;
    height: 140px;
    float: left;
}

.header-bar-section {
    background-image: url('../images/chair.jpg');
    background-repeat: round;
    height: 140px;
    display: flex;
    align-items: flex-end;
}

.header-bar-section ul {
    margin: 0;
    padding: 0;
    overflow: hidden;
    list-style-type: none;
    justify-content: center;
    width: 100%;
    display: flex;
    background-color: black;
    height: 50px;
    align-items: center;
}

.header-bar-section li {
    width: calc(100% / 5);
}

.header-bar-section li.active {
    background-color: gray;
}

.header-bar-section li.active:before {
    background-color: white;
    content: '';
    display: block;
    position: relative;
    bottom: 0;
    left: 0;
    height: 10px;
    margin-bottom: -10px;
}

.header-bar-section li a {
    display: block;
    color: white;
    text-align: center;
    padding: 16px;
    text-decoration: none;
}

.header-bar-section li a:hover {
    background-color: white;
    color: black;
    font-size: large;
    text-decoration: underline;
}

.main-content {
    width: calc(80% - 40px);
    padding: 20px;
    background-color: white;
    margin: 40px auto 90px auto;
}

.footer {
    position: fixed;
    bottom: 0;
    left: 0;
    border: 1px solid gray;
    width: calc(100% - 2px);
    background-color: aliceblue;
}

.footer .footer-content {
    padding-right: 40px;
    float: right;
    color: gray;
}