水平線金字塔
<html>
<head>
</body>
<script>
var a = 1;
while( a > 100 )
document.write("<hr width = "+a+"% ? color = 'red'> <br>);
</script>
</body>
</head>
</html>
<html>
<head>
</body>
<script>
var a = 1;
while( a > 100 )
document.write("<hr width = "+a+"% ? color = 'red'> <br>);
</script>
</body>
</head>
</html>