console 命令行工具 X clear

console

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<link rel="stylesheet" href="float.css">
</head>
<body>
    <div class="left"></div>
	<div class="right"></div>
</body>
</html>

body {
	display: flex;
}

.left {
	flex-grow: 1;
	background-color: red;
}

.right {
	width: 100px;
	height: 50px;
	background-color: black;
	float: right;
}