input.knop {
  width:200px;
  border:none;
  font-size:18px;
  font-weight:bold;
  font-family: "Open Sans", Arial, sans-serif;
  text-decoration: none;
  text-align: center;
  background-color: #e2be1b;
  color: white;
  padding: 10px 10px 10px 10px;
  display:block;
  appearance: none;
  box-shadow: none;
  border-radius: 0;
}