title: Bootstrap columns are not stacking on small/mobile screen
body: <p>Rather than the columns stacking under one another on a phone screen, I must scroll side to side to see them. From what it seems like, I have all the required components nested in rows and containers properly. I'm on Bootstrap 3.1.1.</p>
  <p><strong>Code:</strong></p>
  <pre><code>&lt;header class=&quot;jumbotron&quot; role=&quot;banner&quot;&gt;
    &lt;div class=&quot;container&quot;&gt;
      &lt;div class=&quot;row&quot;&gt;
  
        &lt;div class=&quot;col-md-6&quot;&gt;
          &lt;!-- Title --&gt;
          &lt;h1&gt;MyApp&lt;/h1&gt;
          &lt;!-- Sub title --&gt;
          &lt;p&gt;About my app: &lt;/p&gt;
          &lt;ol&gt;
            &lt;li&gt;Info 1&lt;/li&gt;
            &lt;li&gt;Info 2&lt;/li&gt;
            &lt;li&gt;Info 3&lt;/li&gt;
          &lt;/ol&gt;
          &lt;p&gt;Hope you like it!&lt;/p&gt;
  
          &lt;div class=&quot;row&quot;&gt;
            &lt;!-- Button --&gt;
            &lt;div class=&quot;col-md-6&quot;&gt;
              &lt;a href=&quot;http://play.google.com/store?utm_source=global_co&amp;utm_medium=prtnr&amp;utm_content=Mar2515&amp;utm_campaign=PartBadge&amp;pcampaignid=MKT-AC-global-none-all-co-pr-py-PartBadges-Oct1515-1&quot;&gt;&lt;img width=&quot;135&quot; alt=&quot;Get it on Google Play&quot; src=&quot;https://play.google.com/intl/en_us/badges/images/apps/en-play-badge.png&quot; /&gt;&lt;/a&gt;
            &lt;/div&gt;
            &lt;div class=&quot;col-md-5&quot;&gt;
              &lt;a href=&quot;https://geo.itunes.apple.com/us/app/spotify-music/id324684580?mt=8&quot; style=&quot;display:inline-block;overflow:hidden;background:url(http://linkmaker.itunes.apple.com/images/badges/en-us/badge_appstore-lrg.svg) no-repeat;width:165px;height:40px;&quot;&gt;&lt;/a&gt;
            &lt;/div&gt;
          &lt;/div&gt;
          &lt;!-- /.row --&gt;
  
        &lt;/div&gt;
        &lt;!-- /.col-md-6 --&gt;
  
        &lt;div class=&quot;col-md-4&quot;&gt;
          &lt;!-- Images showcase --&gt;
          &lt;figure&gt;
            &lt;img class=&quot;img-iPhone&quot; src=&quot;images/1t.png&quot; alt=&quot;&quot;&gt;
          &lt;/figure&gt;
        &lt;/div&gt;
        &lt;!-- /.col-md-4 --&gt;
  
      &lt;/div&gt;
      &lt;!-- /.row --&gt;
    &lt;/div&gt;
    &lt;!-- /.container --&gt;
  &lt;/header&gt;
  &lt;!-- /.jumbotron --&gt;
  
  &lt;!-- Services --&gt;
  &lt;section class=&quot;info-sec&quot; id=&quot;section-1&quot;&gt;
    &lt;div class=&quot;container&quot;&gt;
      &lt;div class=&quot;row&quot;&gt;
  
        &lt;div class=&quot;col-md-4&quot;&gt;
          &lt;figure&gt;
            &lt;img class=&quot;img-iPhone&quot; src=&quot;images/1t.png&quot; alt=&quot;&quot;&gt;
          &lt;/figure&gt;
          &lt;p&gt;
            Details here
          &lt;/p&gt;
        &lt;/div&gt;
        &lt;!-- /.col-md-4 --&gt;
  
        &lt;div class=&quot;col-md-4&quot;&gt;
          &lt;!-- Images showcase --&gt;
          &lt;figure&gt;
            &lt;img class=&quot;img-iPhone&quot; src=&quot;images/1t.png&quot; alt=&quot;&quot;&gt;
          &lt;/figure&gt;
          &lt;p&gt;
            Details here
          &lt;/p&gt;
        &lt;/div&gt;
        &lt;!-- /.col-md-4 --&gt;
  
        &lt;div class=&quot;col-md-4&quot;&gt;
          &lt;figure&gt;
            &lt;img class=&quot;img-iPhone&quot; src=&quot;images/1t.png&quot; alt=&quot;&quot;&gt;
          &lt;/figure&gt;
          &lt;p&gt;
            Details here
          &lt;/p&gt;
        &lt;/div&gt;
        &lt;!-- /.col-md-4 --&gt;
  
      &lt;/div&gt;
      &lt;!-- /.row --&gt;
    &lt;/div&gt;
    &lt;!-- /.container --&gt;
  &lt;/section&gt;
  &lt;!-- /.info-sec--&gt;
  </code></pre>
  <p><strong>Screenshots:</strong></p>
  <p><strong>Desktop:</strong></p>
  <p><a href="https://i.stack.imgur.com/veqZgm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/veqZgm.png" alt="How it looks on desktop" /></a></p>
  <p><strong>Phone:</strong></p>
  <p><a href="https://i.stack.imgur.com/Gsi9Dm.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Gsi9Dm.png" alt="How it look on the phone" /></a></p>
  <p>Any help is appreciated. Thanks!</p>