<h2>見出しのサンプル</h2>
文字を線で囲み枠線を付けた見出しです。
h2 {
  color: #a00e0e;  /*文字色*/
  background: #f4c6c6;  /*背景色*/
  border: solid 2px #a00e0e;  /*線色*/
  padding: 5px 5px 3px 10px;  /*余白*/
}

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