html,
body {
	padding: 0;
	margin: 0;
	font-family: Georgia, serif;
}

.head {
	height: 80px;
	line-height: 80px;
	margin: 0;
	padding: 0 15px;
	text-align: left;
	color: #666;
	font-size: 18px;
	user-select: none;
	position: relative;
}

.head:before {
	content: '';
	width: 7px;
	height: 70%;
	background: #30983F;
	position: absolute;
	top: 15%;
	left: 0;
}

.head b {
	font-size: 18px;
	color: #666;
}

.button {
	width: 90px;
	height: 35px;
	font-size: 16px;
	background:#E55C5C;
	color:#fff;
	border-radius:4px;
	border:none;
	outline:none;
	-webkit-tap-highlight-color: #999;
	margin:5px 10px;
}
.para_input{
	width: 50px;
	height:28px;
	font-size:16px;
	color:#666;
	padding:0 5px;
}
label{
	margin-left:10px;
}
.button:hover {
	background:#c05959;
}

.wrap {
	width: 100%;
	text-align:center;
}

.canvas {
	background: #f0f0f0;
	height: 400px;
	width: 100%;
}

@media screen and (max-width: 430px) {
	.head {
		height: 50px;
		line-height: 50px;
		padding: 10px 15px;
	}
	.head b {
		font-size: 14px;
		color: #666;
	}
}