@charset "utf-8";
	body,h1,h2,h3,h4,h5,h6,hr,p,dl,dt,dd,ul,ol,li,pre,code,form,legend,b,button,input,textarea,blockquote {
	margin:0;
	padding:0;
}
img,abbr,acronym {
	border:0;
}
table td {
	word-break:break-all;
}
table {
	border-collapse:collapse;
	border-spacing:0;
}
caption,th {
	text-align:left;
}
ol,ul {
	list-style:none;
}
h1,h2,h3,h4,h5,h6 {
	font-size:100%;
	font-weight:700;
}
input,button,textarea,select {
	font-size:inherit;
	*font-size:100%;
	font-family:inherit;
}
address,cite,dfn,em,code,var,caption,th {
	font-style:normal;
	font-weight:normal;
}
q:before,q:after {
	content:'';
}
h1 {
	font-size:30px;
	text-align:center;
	padding:20px 0;
}
p {
	padding:10px 0;
}
div {
	float:left;
	width:50%;
	text-align:center;
	margin:0 0 50px;
}
canvas {
	background:pink;
}
/*视频教学2017.10.13*/
span[lineColor] {
	display:inline-block;
	padding:5px;
	cursor:pointer;
	color:#fff;
	background:#ccc;
}
span[lineColor].current {
	padding:5px 30px;
}
span[lineColor='#ff0000'] {
	background:#ff0000;
}
span[lineColor='#0000ff'] {
	background:#0000ff;
}
span[lineColor='#008040'] {
	background:#008040;
}
span[lineColor='#000000'] {
	background:#000000;
}
input[type='range'] {
	vertical-align:middle;
	margin:0 10px;
}