title: Strange gap between the last two fieldsets
body: <p>I am getting when i use a fieldset underneath the other fieldset a strange gap between, but that's not in my code...</p>
  
  <p>Here's the css:</p>
  
  <pre><code>fieldset { overflow:hidden }
  .some-class { float:left; clear:none; }
  .some-class1 { float:left; clear:none; }
  .some-class2 { float:left; clear:none; }
  .someclass { float:left; clear:none; }
  .someclass1 { float:left; clear:none; }
  </code></pre>
  
  <p>Here the html:</p>
  
  <pre><code>&lt;fieldset&gt;
    &lt;div class="some-class"&gt;
               &lt;input type="button" value="AAN" style="float:left" onclick="POI(this)" /&gt;
  
      &lt;input type="button" value="UIT" style="float:left" onclick="POI(this)" /&gt;
     &lt;span&gt;Spoortoegang &lt;/span&gt;
  
   &lt;/div&gt;
  &lt;/fieldset&gt;
  &lt;fieldset&gt;
    &lt;div class="someclass"&gt;
                   &lt;input type="button" value="AAN" style="float:left" onclick="Storingen(this)" /&gt;
  
           &lt;input type="button" value="UIT" style="float:left" onclick="Storingen(this)" /&gt;
    &lt;span&gt;Storingen&lt;/span&gt;
   &lt;/div&gt;
  &lt;/fieldset&gt;
  
  &lt;fieldset&gt;
    &lt;div class="Tekeningen-class"&gt;
               &lt;input type="button" value="AAN" style="float:left" onclick="Tekeningen(this)" /&gt;
  
      &lt;input type="button" value="UIT" style="float:left" onclick="Tekeningen(this)" /&gt;
     &lt;span&gt;Tekeningen&lt;/span&gt;
  
   &lt;/div&gt;
  &lt;/fieldset&gt;
  
  &lt;fieldset&gt;
    &lt;div class="someclass1"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="Ultrasoon(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="Ultrasoon(this)" /&gt;
    &lt;span&gt;Ultrasoon Rapporten&lt;/span&gt;
   &lt;/div&gt;
   &lt;/fieldset&gt;
  
     &lt;fieldset&gt;
    &lt;div class="some-class2"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="Medewerkers(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="Medewerkers(this)" /&gt;
    &lt;span&gt;Medewerkers&lt;/span&gt;
   &lt;/div&gt;
  &lt;/fieldset&gt;​
   &lt;fieldset style="margin:0px; padding 0px;"&gt;
  
   &lt;ul class="dropdown"&gt;
   &lt;div id="some-class1""&gt;
      &lt;li&gt;&lt;a id="drivers" onclick="dropdown(this); return false;" class="dir" style="font size=18""&gt;IRISSYS Data &amp;#9660;&lt;/a&gt;
          &lt;ul id="driversmenu" class="sub" &gt;
  &lt;fieldset style="background-color:#c5ccd3"&gt;            
              &lt;li&gt;&lt;a&gt;  &lt;div class="someclass"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="irisvoertuig(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="irisvoertuig(this)" /&gt;
    &lt;span&gt;Voertuig Effect&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
  &lt;/fieldset&gt;
  
  &lt;fieldset style="background-color:#c5ccd3"&gt;            
              &lt;li&gt;&lt;a&gt;  &lt;div class="someclass"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="iriscombinatie(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="iriscombinatie(this)" /&gt;
    &lt;span&gt;Combinatie Parameter&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
  &lt;/fieldset&gt;
  
  &lt;fieldset style="background-color:#c5ccd3"&gt;            
              &lt;li&gt;&lt;a&gt;  &lt;div class="someclass"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="irishoogte(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="irishoogte(this)" /&gt;
    &lt;span&gt;Hoogte&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
  &lt;/fieldset&gt;
  
  &lt;fieldset style="background-color:#c5ccd3"&gt;            
              &lt;li&gt;&lt;a&gt;  &lt;div class="someclass"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="irisschift(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="irisschift(this)" /&gt;
    &lt;span&gt;Schift&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
  &lt;/fieldset&gt;
  
  &lt;fieldset style="background-color:#c5ccd3"&gt;            
              &lt;li&gt;&lt;a&gt;  &lt;div class="someclass"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="irisverkanting(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="irisverkanting(this)" /&gt;
    &lt;span&gt;Verkanting verschil&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
  &lt;/fieldset&gt;
  
  &lt;fieldset style="background-color:#c5ccd3"&gt;            
              &lt;li&gt;&lt;a&gt;  &lt;div class="someclass"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="irisspoorwijdte(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="irisspoorwijdte(this)" /&gt;
    &lt;span&gt;Spoorwijdte Verloop&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
  &lt;/fieldset&gt;
  
  &lt;fieldset style="background-color:#c5ccd3"&gt;            
              &lt;li&gt;&lt;a&gt;  &lt;div class="someclass"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="irisspoorstaaf(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="irisspoortaaf(this)" /&gt;
    &lt;span&gt;Spoorstaaf Slijtage&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
  &lt;/fieldset&gt;
  &lt;fieldset style="background-color:#c5ccd3"&gt;            
              &lt;li&gt;&lt;a&gt;  &lt;div class="someclass"&gt;
                     &lt;input type="button" value="AAN" style="float:left" onclick="irissporen(this)" /&gt;
  &lt;input type="button" value="UIT" style="float:left;" onclick="irissporen(this)" /&gt;
    &lt;span&gt;IRISSYS Sporen&lt;/span&gt;&lt;/a&gt;&lt;/li&gt;
  &lt;/fieldset&gt;
  
         &lt;/ul&gt;
      &lt;/li&gt;
          &lt;div&gt;
  
      &lt;/ul&gt;
    &lt;/fieldset&gt;
  </code></pre>
  
  <p>And in chrome's element inspector i get this:</p>
  
  <p><img src="https://i.stack.imgur.com/bJ3GO.png" alt="element inspector"></p>
  
  <p>Does anyone know what i am doing wrong?
  Your help would be appreciated. </p>
  
  <p>Thanks in advance</p>