.content-wrapper {
    width: 960px;
    margin: 0 auto;
}
        
.header {
    width: 100%;
}

.content {
    width: 100%;
}

.thunder-logo {
    background-image: url('graphics/logocolor-011-300x46.png');
    width: 300px;
    height: 46px;
    margin: 0 auto;
}