html, body {
  padding: 0px;
  margin: 0px;
  height: 100%;
}
div {
  text-align: center;
}
.blue {
  background-color: #0057b8;
  height: 50%;
}
.yellow {
  background-color: #ffd700;
  height: 50%;
  position: relative;
}
h1 {
  margin: 0px;
  vertical-align: bottom;
  font-family: sans-serif;
  text-transform: uppercase;
  font-size: 72px;
}
.text_top {
  color: #ffd700;
  height: 100%;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.text_bottom {
  color: #0057b8;
}
.imprint {
  background-color: black;
  padding: 10px;
}
button {
  padding: 8px;
  font-family: sans-serif;
  font-size: 20px;
  cursor: pointer;
}