setting.css

* {
	font-family: 'microsoft yahei';
}

body {
	width: 400px;
	height: 400px;
}

textarea {
	width: 350px;
	height: 300px;
	overflow: auto;
}

button {
	font-weight: 400;
	text-align: center;
	vertical-align: middle;
	cursor: pointer;
	border: 1px solid transparent;
	color: #FFF;
	border-color: #2e6da4;
	background-color: #337ab7;
	padding: 5px 10px;
	font-size: 12px;
	line-height: 1.5;
	border-radius: 3px;
}

button:hover {
	background-color: #286090;
	border-color: #204d74;
}

textarea {
	padding: 6px 12px;
	font-size: 14px;
	color: #555;
	border: 1px solid #ccc;
	border-radius: 4px;
	box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
	-webkit-box-shadow: inset 0 1px 1px rgba(0,0,0,.075);
	transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s;
	-webkit-transition: border-color ease-in-out .15s,box-shadow ease-in-out .15s;
	font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
	line-height: 1.42857143;
}