.aufgabe {  font-family: Arial, Helvetica, sans-serif; font-size: 16px; font-style: normal; line-height: normal; text-align: justify; text-indent: -1cm; white-space: normal; letter-spacing: normal; vertical-align: baseline; word-spacing: normal}
.ueberschrift {  font-family: Arial, Helvetica, sans-serif; font-size: 18px; font-style: normal; font-weight: bold; text-align: center; color: #33cc33}
.hauptueberschrift {  font-family: Arial, Helvetica, sans-serif; font-size: 18px; font-style: normal; color: #ff9933; text-align: center; font-weight: bold; text-decoration: underline}
.text {  font-family: Arial, Helvetica, sans-serif; font-size: 16px}