<h1>網頁標題</h1>
<h2>網頁副標</h2>
<p>此網頁的背景色是藍色</p>
html{
  /*設定網頁背景色*/
  background-color: #54A3D8;
  font-family: Microsoft JhengHei;
}
h1{
  font-size:3em;
  text-align: center;
}
h2{
  font-size:2em;
  text-align: center;
}
p{
  font-size:16px;
  text-align: center;
}

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