body {
    margin: 0;
}

.main {
    margin: 0 8px;
}

body > h1:first-of-type {
    margin-top: 80px;
}

.header-bar {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    height: 60px;
    width: 100%;
    border-bottom: 1px solid black;
    background-color: #efefef;
    z-index: 10;
    justify-content: space-between;
    flex-direction: row;
}

.header-bar img {
    height: 60px;
}