console 命令行工具 X clear
console
<!DOCTYPE html>
<!-- general sibling combinator001 -->
<html lang="utf-8">
<head>
  <meta charset="utf-8">
  <title>In This Essay, I Will</title>
  <style>
    h1 ~ p {
      background: yellow
    }
    h2 + p {
      outline: 5px dotted #009;
    }
  </style>
</head>
<body>
  <h1>In This Essay, I Will</h1>
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing
  elit. Fusce odio leo, sollicitudin vel mattis eget.…</p>
  <p>Nulla sit amet neque eleifend diam aliquam
  rhoncus. Donec id congue est. Aliquam sagittis euismod
  tristique.…</p>
  <h2>Show how the general sibling combinator
  works</h2>
  <p>Proin condimentum elit sapien, ut tempor nisl
  porta quis. …</p>
</body>
</html>