body {
    background-color: #000000;
    width: 100%;
}
.wrapper {
    width: 100%;
    margin-left: auto;
    margin-right: auto;
}
.upper {
    height: 300px;
}
.middle {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 100%;
}
.middle img {
    display: block;
    width: 800px;
    
    margin-left: auto;
    margin-right: auto;
}
.header {
    color: white;
    text-align: center;
}
.underline {
    text-align: center;
    color: white;
}