.top_banner IMG {
  display: block;
  margin-left: auto;
  margin-right: auto;
  padding: 5px;
}

body {
  color: black;
  background: lightblue;
}

.title_frame {
  height: 10%;
  width: 100%;
  text-align: center;
}

.title_frame H1 {
}

.content {
  background: lightblue;
}

.main_content {
  background: lightblue;
  background-repeat: no-repeat;
  background-position: center;
}

.content:after {
}

.bottom_banner IMG {
  display: block;
  margin-left: auto;
  margin-right: auto;
}