.mypets{ /*header of 1st demo*/
cursor: hand;
cursor: pointer;
padding: 2px 5px;
border: 1px solid gray;
background: #E1E1E1;
}

.openpet{ /*class added to contents of 1st demo when they are open*/
background: yellow;
}

.technology{ /*header of 2nd demo*/
cursor: hand;
cursor: pointer;
font: bold 14px Verdana;
margin: 10px 0;
}


.openlanguage{ /*class added to contents of 2nd demo when they are open*/
color: green;
}

.closedlanguage{ /*class added to contents of 2nd demo when they are closed*/
color: red;
}