button {
	position: absolute; 
	margin: 15px;
}
#changeBG {
	margin-left: 105px;
}
#startTest {
	display:none;
}
#stopTest {
	display:none;
}
#countdown {
	text-align: center; 
	color:white; 
	font-family:Arial; 
	font-size:2em; 
	background-color: rgba(0,0,0,0.4);
}
.container {
	display: inline;
	width: 100%;
	height:24px;
}
.buttons {
	height:24px;
	width: 500px;
}
.poll {
	color:gray;
	height:24px;
	width: 500px;
}