.certif{
	size: 100px;
	font-family: Arial, Helvetica, sans-serif;
}
.font1{
	font-size: 30px;
	font-weight: normal;

}
.font2{
	font-size: 20px;
	margin-bottom: -20px;
	font-weight: normal;
}
.font3{
	font-size: 20px;
	font-weight: normal;
}
a.knopka {
  font-weight: 700;
  color: white;
  text-decoration: none;
  padding: .8em 1em calc(.8em + 3px);
  border-radius: 3px;
  background: rgb(70, 130, 180);
  box-shadow: 0 -3px rgb(70, 120, 180) inset;
  transition: 0.2s;
}