.HeaderPanel {
    position: fixed;
    overflow: hidden;
    background-color: rgb(33, 37, 41);
    padding: 10px 10px;
    top: 0;
    width: 100%;
}

.HeaderPanel a {
    text-align: center;
    color: rgba(255, 255, 255, .75);
    padding: 6px;
    text-decoration: none;
    font-size: 18px; 
    line-height: 25px;
    border-radius: 4px;
}

.HeaderTitle {
    text-align: center;
}

.HeaderLeft {
    float: left;
}