section {
  width: 100%;
  /*height: 800px;*/
  border: none;
  overflow: hidden;
}

.semana {
  padding-bottom: 8%;
  background-image: url("https://docs.google.com/spreadsheets/d/e/2PACX-1vSw1o34ARnsZ6w2-k8ipl32QeK-CGa3PtrYbGWGRM10_JegnRzaRxpNoByFiyFiZGp5FWs9Y6hFuuxm/pubchart?oid=794324627&format=image");
  background-repeat: no-repeat;
  background-position: center center;
  background-size: 20%;
}