<body> <form> <input class="button" type="submit" value="送信"/> <a class="button" href="#">ボタン</a> </form> </body>
* { font-size: 100%; font: inherit; } input[type=submit].button { color: #FFF; background: #FF7F00; border: 0; font-size: 150%; padding: 3px 45px; } a.button { text-decoration: none; color: #FFF; background: #FF7F00; font-size: 150%; margin: 0; border: 0; padding: 3px 45px; display: inline-block; line-height: inherit; }