<style>
		#mystar {
			width: 95%;
			min-height: 300px;
			border: 1px solid black;
			background-color: black;
			position: relative;
			overflow: hidden;
		}
	</style>
</head>
<body onload="gogo()">
<h1>產生許多星星的 createElement 的作法</h1>

<div id='mystar'></div>