.header {
    background: #505050;
    overflow: hidden;
}

.header > div {
    position: relative;
    padding: 0;
    width: 1170px;
    margin: 0 auto;
}

.active {
    background: #232323;
}

.version {
    position: absolute;
    right: 0;
    width: 50px;
}