
	<section id="intro" class="g-mod g-attr">
		<h2 class="tit">说明：</h2>
		<div class="cont">
			<strong>弧度（Radians）。一个圆共2π弧度</strong>
			<p>90deg = 100grad = 0.25turn ≈ 1.570796326794897rad</p>
		</div>
	</section>
	<section id="compatible" class="g-mod g-attr">
		<h2 class="tit">兼容性：</h2>
		<div class="cont">
			<ul class="support-type">
				<li><span class="support">浅绿</span> = 支持</li>
				<li><span class="unsupport">红色</span> = 不支持</li>