* {
	box-sizing: border-box;
	margin: 0px;
	padding:0px;
}

a {
	display: block;
	float:right;
	margin-left:20px;
}

section {
	display: block;
	overflow:hidden;
	max-width:800px;
	margin:0 auto;
}

.left_content {
	max-width:80%;
	clear:both;
	float:left;
	display: block;
	overflow: hidden;
	border: 1px #ccc solid;
    padding: 10px;
    border-radius: 10px;
	margin-top:10px;
	margin-bottom: 10px;
}

.right_content {
	max-width:80%;
	clear:both;
	float:right;
	display: block;
	overflow: hidden;
	border: 1px #ccc solid;
    padding: 10px;
    border-radius: 10px;
	margin-top:10px;
}

textarea {
	width:100%;
	border: 3px #dfdfdf solid;
	padding:5px;
	height:100px;
	font-size:18px;
}

#history_area {
	min-height:100px;
}

button {
	display: block;
	background-color: #4BA3FF;
	border-radius:5px;
	color: #FFF;
	padding: 10px 30px;
	transition: 0.2s;
	border:none;
	margin-top:10px;
	margin-left:10px;
	cursor: pointer;
	float:right;
	line-height: 1;
}

#chat_status_area {
    display: block;
    overflow: hidden;
    width: 100%;
	color:#85aedf;
	font-size: 80%;
}

.error {
	text-align: center;
	color:#cc0000;
	margin-top:100px;
	border: 1px #ccc solid;
    padding: 20px;
    border-radius: 10px;
}