*,*:after,*:before{
	box-sizing: border-box;
}
body,html{
	margin: 0;
	font-family: sans-serif;
	color: #333;
}
.mainBody{
	max-width: 800px;
	margin: 20px auto;
}
.mainTextarea{
	width: 100%;
	display: block;
	margin: 0 auto;
	border: solid 1px #999;
	resize: none;
	height: 300px;
	padding: 5px;
}
.divider{
	margin: 10px auto;
	border-top: solid 1px transparent;
}