问小型平板电脑和手机上的引导响应修复

EN

<div class="container">
      <h1>Responsive boxes</h1>
      <div class="row-fluid">
        <div class="span3">
          <h3>M. 1</h3>
        </div>
        <div class="span3">
          <h3>M. 2</h3>
        </div>
        <div class="span3">
          <h3>M. 3</h3>
        </div>
        <div class="span3">
          <h3>M. 4</h3>
        </div>
      </div>
    </div> <!-- /container -->

body {
  background-color: #fff;
  font-family: 'Cabin', Helvetica, Arial, sans-serif;
  width: 100%;
  text-align: center;
}

h1, h2, h3, h4, h5, h6 {
    font-family: 'Lobster', Georgia, Times, serif;
}

h3{
  color: #fff;
  font-size: 139px;
  line-height: 171px;
}

.span3 {
  background: rgb(255, 81, 10);
  height: 200px;
  overflow: hidden;
  margin-bottom: 30px;
}