body {
  background-image: url(images/SANY0350.JPG);
  background-size: cover;
  background-repeat: no-repeat;
}

.Obox{
    max-width: 1000px;
    border: black 2px solid;
    margin:100px auto;
    text-align: center;
    background-color: white;
}

nav,main,footer{
  border: black 1px solid;
  display: grid;
  grid-column: 1/2;
  grid-row: 1/2;
}
.banner
{
  display: block;
  margin: auto auto auto auto; 
}

.ribbon
{
  display: block;
  padding: 2px;
}