ｔれｃｖｃｖｊｊ - 経済統計練習帳

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<html>
<head>
<title>TODO</title>
<meta charset="UTF-8">
<link rel="stylesheet" href="https://storage.googleapis.com/code.getmdl.io/1.0.6/material.indigo-pink.min.css">
<script src="https://storage.googleapis.com/code.getmdl.io/1.0.6/material.min.js"></script>
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<body>
 
<form action="#">
  <div class="mdl-textfield mdl-js-textfield">
    <input class="mdl-textfield__input" type="text" id="sample1">
    <label class="mdl-textfield__label" for="sample1">Text...</label>
  </div>
</form>
<form action="#">
  <div class="mdl-textfield mdl-js-textfield">
    <input class="mdl-textfield__input" type="text" pattern="-?[0-9]*(\.[0-9]+)?" id="sample2">
    <label class="mdl-textfield__label" for="sample2">Number...</label>
    <span class="mdl-textfield__error">Input is not a number!</span>
  </div>
</form>
</body>
</html>