/* css styles */
div.example {
    background-color:#007acc;
    color: #ffffff;
    margin: auto;
    width: 100%; 
	padding: 1.4em; 
	border: 3px solid #007acc; 
	border-radius: 10px; 
	margin-bottom: 14px; 
	margin-top: 14px;  
	box-shadow: 7px 7px 5px #cccccc; 
	overflow: hidden;
}
div.practice {
    background-color:#fbfbfb;
    color: #007acc;
    margin: auto;
    width: 100%; 
	padding: 1.4em; 
	border: 3px solid #eeeeee; 
	border-radius: 10px; 
	margin-bottom: 14px; 
	margin-top: 14px;  
	box-shadow: 7px 7px 5px #cccccc; 
	overflow: hidden;
}