.Aufgaben{
	width: 100%;
	height: 50px;
	font-size: 30px;
	
	
}

#stufe{
		
}

.input-number {
	width: 200px;
	height: 50px;
	font-size: 30px;
	
		
}

.input-number_function {
	width: 500px;
	height: 50px;
	font-size: 30px;
	
	
	
   
	
}

.check_right {
	width: 200px;
	height: 50px;
	font-size: 40px;
	background-color : lightgreen;
	
	
	
   
	
}

.check_false {
	width: 200px;
	height: 50px;
	font-size: 40px;
	background-color : #ff474c;

	
	
   
	
}


table, th, td {
  border: 3px solid black;
  border-collapse: collapse;
  text-align: center;
}