Header button overflow

<!DOCTYPE html>
<html>

  <head>
    <link rel="stylesheet" href="style.css">
    <link href="http://cdn.kendostatic.com/2013.1.319/styles/kendo.common.min.css" rel="stylesheet">
    <link id="themeFile" href="http://cdn.kendostatic.com/2013.1.319/styles/kendo.default.min.css" rel="stylesheet">
  </head>

  <body>
  
    <div class="k-block">
      <div class="k-header">
          Title
          <a class="k-button" style="float:right">
              <span class="k-icon k-i-close"></span>
          </a>
      </div>
      <p>Content</p>
    </div>

    <script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
    <script src="http://cdn.kendostatic.com/2013.1.319/js/kendo.all.min.js"></script>
    <script src="script.js"></script>
  
</body>

</html>

(function() {
  var viewModel = kendo.observable({
    changeTheme: function(e) { 
      $("#themeFile").attr("href", "http://cdn.kendostatic.com/2013.1.319/styles/kendo." + e.sender.value() + ".min.css");
    },
    states: new kendo.data.DataSource({
      data: [
          { name: 'ALABAMA', abbreviation: 'AL'},
          { name: 'ALASKA', abbreviation: 'AK'},
          { name: 'AMERICAN SAMOA', abbreviation: 'AS'},
          { name: 'ARIZONA', abbreviation: 'AZ'},
          { name: 'ARKANSAS', abbreviation: 'AR'},
          { name: 'CALIFORNIA', abbreviation: 'CA'},
          { name: 'COLORADO', abbreviation: 'CO'},
          { name: 'CONNECTICUT', abbreviation: 'CT'},
          { name: 'DELAWARE', abbreviation: 'DE'},
          { name: 'DISTRICT OF COLUMBIA', abbreviation: 'DC'},
          { name: 'FEDERATED STATES OF MICRONESIA', abbreviation: 'FM'},
          { name: 'FLORIDA', abbreviation: 'FL'},
          { name: 'GEORGIA', abbreviation: 'GA'},
          { name: 'GUAM', abbreviation: 'GU'},
          { name: 'HAWAII', abbreviation: 'HI'},
          { name: 'IDAHO', abbreviation: 'ID'},
          { name: 'ILLINOIS', abbreviation: 'IL'},
          { name: 'INDIANA', abbreviation: 'IN'},
          { name: 'IOWA', abbreviation: 'IA'},
          { name: 'KANSAS', abbreviation: 'KS'},
          { name: 'KENTUCKY', abbreviation: 'KY'},
          { name: 'LOUISIANA', abbreviation: 'LA'},
          { name: 'MAINE', abbreviation: 'ME'},
          { name: 'MARSHALL ISLANDS', abbreviation: 'MH'},
          { name: 'MARYLAND', abbreviation: 'MD'},
          { name: 'MASSACHUSETTS', abbreviation: 'MA'},
          { name: 'MICHIGAN', abbreviation: 'MI'},
          { name: 'MINNESOTA', abbreviation: 'MN'},
          { name: 'MISSISSIPPI', abbreviation: 'MS'},
          { name: 'MISSOURI', abbreviation: 'MO'},
          { name: 'MONTANA', abbreviation: 'MT'},
          { name: 'NEBRASKA', abbreviation: 'NE'},
          { name: 'NEVADA', abbreviation: 'NV'},
          { name: 'NEW HAMPSHIRE', abbreviation: 'NH'},
          { name: 'NEW JERSEY', abbreviation: 'NJ'},
          { name: 'NEW MEXICO', abbreviation: 'NM'},
          { name: 'NEW YORK', abbreviation: 'NY'},
          { name: 'NORTH CAROLINA', abbreviation: 'NC'},
          { name: 'NORTH DAKOTA', abbreviation: 'ND'},
          { name: 'NORTHERN MARIANA ISLANDS', abbreviation: 'MP'},
          { name: 'OHIO', abbreviation: 'OH'},
          { name: 'OKLAHOMA', abbreviation: 'OK'},
          { name: 'OREGON', abbreviation: 'OR'},
          { name: 'PALAU', abbreviation: 'PW'},
          { name: 'PENNSYLVANIA', abbreviation: 'PA'},
          { name: 'PUERTO RICO', abbreviation: 'PR'},
          { name: 'RHODE ISLAND', abbreviation: 'RI'},
          { name: 'SOUTH CAROLINA', abbreviation: 'SC'},
          { name: 'SOUTH DAKOTA', abbreviation: 'SD'},
          { name: 'TENNESSEE', abbreviation: 'TN'},
          { name: 'TEXAS', abbreviation: 'TX'},
          { name: 'UTAH', abbreviation: 'UT'},
          { name: 'VERMONT', abbreviation: 'VT'},
          { name: 'VIRGIN ISLANDS', abbreviation: 'VI'},
          { name: 'VIRGINIA', abbreviation: 'VA'},
          { name: 'WASHINGTON', abbreviation: 'WA'},
          { name: 'WEST VIRGINIA', abbreviation: 'WV'},
          { name: 'WISCONSIN', abbreviation: 'WI'},
          { name: 'WYOMING', abbreviation: 'WY' }
      ]
    })
  });
  
  kendo.bind(document.body, viewModel);  
}());

dd {
  margin: 0px 0px 10px 0px;
}
body {
  margin-left: 20px;
}