Почему браузеры не корректно отображают код или где у меня ошибка в коде?

<div id="content">
<form method='POST' action='../addnewtype/'>
    <input type='hidden' name='pin' value='3333'/>
    <input type='hidden' name='pass' value='d59c0e414426c0b261ba0cc19372ca1a'/>
    <input type='hidden' name='PINNum' value='3'/>
    <button class='btn btn-md btn-default' type='submit'>Добавить новое поле</button>
</form>
<form method='POST' action='../savetypeofgalery/'>
    <input type='hidden' name='pin' value='3333'/>
    <input type='hidden' name='pass' value='d59c0e414426c0b261ba0cc19372ca1a'/>
    <input type='hidden' name='PINNum' value='3'/>
        <table align='center' border='1'>
            <caption>Таблица списков в галереи</caption>
            <tr>
                <th> id </th>
                <th> индекс позиции </th>
                <th> имя </th>
                <th> удалить </th>
            </tr>
            <tr>
                <th>7</th>
                <th><input name='position7' value='0'/></th>
                <th><input name='name7' value='new tab'/></th>
                <th>
                       <form method='POST' action='../deltypeofgalery/'>
                               <input type='hidden' name='pin' value='3333'/>
                               <input type='hidden' name='pass' value='d59c0e414426c0b261ba0cc19372ca1a'/>
                               <input type='hidden' name='PINNum' value='3'/>
                              <input type='hidden' name='id' value='7'/>
                              <button class='btn btn-md btn-default' type='submit'>Удалить</button>
                     </form>
                 </th>
             </tr>
            <tr>
                  <th>8</th>
                  <th><input name='position8' value='0'/></th>
                  <th><input name='name8' value='new tab'/></th>
                  <th>
                              <form method='POST' action='../deltypeofgalery/'>
                                       <input type='hidden' name='pin' value='3333'/>
                                       <input type='hidden' name='pass' value='d59c0e414426c0b261ba0cc19372ca1a'/>
                                       <input type='hidden' name='PINNum' value='3'/>
                                       <input type='hidden' name='id' value='8'/>
                                       <button class='btn btn-md btn-default' type='submit'>Удалить</button>
                           </form>
                   </th>
              </tr>
<tr><th>4</th><th><input name='position4' value='1'/></th><th><input name='name4' value='new tab2'/></th><th><form method='POST' action='../deltypeofgalery/'><input type='hidden' name='pin' value='3333'/><input type='hidden' name='pass' value='d59c0e414426c0b261ba0cc19372ca1a'/><input type='hidden' name='PINNum' value='3'/><input type='hidden' name='id' value='4'/><button class='btn btn-md btn-default' type='submit'>Удалить</button></form></th></tr>
<tr><th>6</th><th><input name='position6' value='55'/></th><th><input name='name6' value='new tab55'/></th><th><form method='POST' action='../deltypeofgalery/'><input type='hidden' name='pin' value='3333'/><input type='hidden' name='pass' value='d59c0e414426c0b261ba0cc19372ca1a'/><input type='hidden' name='PINNum' value='3'/><input type='hidden' name='id' value='6'/><button class='btn btn-md btn-default' type='submit'>Удалить</button></form></th></tr>
<tr><th>5</th><th><input name='position5' value='66'/></th><th><input name='name5' value='new tab66'/></th><th><form method='POST' action='../deltypeofgalery/'><input type='hidden' name='pin' value='3333'/><input type='hidden' name='pass' value='d59c0e414426c0b261ba0cc19372ca1a'/><input type='hidden' name='PINNum' value='3'/><input type='hidden' name='id' value='5'/><button class='btn btn-md btn-default' type='submit'>Удалить</button></form></th></tr>



       </table>
      <br>
      <button class='btn btn-md btn-default' type='submit'>Сохранить</button>
       <input type='hidden' name='ids' value='7,8,4,6,5'/>
  </form>
</div>

<div id="content">
<form method="POST" action="../addnewtype/"><input type="hidden" name="pin" value="3333"><input type="hidden" name="pass" value="d59c0e414426c0b261ba0cc19372ca1a"><input type="hidden" name="PINNum" value="3"><button class="btn btn-md btn-default" type="submit">Добавить новое поле</button></form><form method="POST" action="../savetypeofgalery/"><input type="hidden" name="pin" value="3333"><input type="hidden" name="pass" value="d59c0e414426c0b261ba0cc19372ca1a"><input type="hidden" name="PINNum" value="3"><table align="center" border="1"><caption>Таблица списков в галереи</caption><tbody><tr><th> id </th><th> индекс позиции </th><th> имя </th><th> удалить </th></tr>
<tr><th>7</th><th><input name="position7" value="0"></th><th><input name="name7" value="new tab"></th><th><input type="hidden" name="pin" value="3333"><input type="hidden" name="pass" value="d59c0e414426c0b261ba0cc19372ca1a"><input type="hidden" name="PINNum" value="3"><input type="hidden" name="id" value="7"><button class="btn btn-md btn-default" type="submit">Удалить</button></th></tr>
<tr><th>8</th><th><input name="position8" value="0"></th><th><input name="name8" value="new tab"></th><th><form method="POST" action="../deltypeofgalery/"><input type="hidden" name="pin" value="3333"><input type="hidden" name="pass" value="d59c0e414426c0b261ba0cc19372ca1a"><input type="hidden" name="PINNum" value="3"><input type="hidden" name="id" value="8"><button class="btn btn-md btn-default" type="submit">Удалить</button></form></th></tr>
<tr><th>4</th><th><input name="position4" value="1"></th><th><input name="name4" value="new tab2"></th><th><form method="POST" action="../deltypeofgalery/"><input type="hidden" name="pin" value="3333"><input type="hidden" name="pass" value="d59c0e414426c0b261ba0cc19372ca1a"><input type="hidden" name="PINNum" value="3"><input type="hidden" name="id" value="4"><button class="btn btn-md btn-default" type="submit">Удалить</button></form></th></tr>
<tr><th>6</th><th><input name="position6" value="55"></th><th><input name="name6" value="new tab55"></th><th><form method="POST" action="../deltypeofgalery/"><input type="hidden" name="pin" value="3333"><input type="hidden" name="pass" value="d59c0e414426c0b261ba0cc19372ca1a"><input type="hidden" name="PINNum" value="3"><input type="hidden" name="id" value="6"><button class="btn btn-md btn-default" type="submit">Удалить</button></form></th></tr>
<tr><th>5</th><th><input name="position5" value="66"></th><th><input name="name5" value="new tab66"></th><th><form method="POST" action="../deltypeofgalery/"><input type="hidden" name="pin" value="3333"><input type="hidden" name="pass" value="d59c0e414426c0b261ba0cc19372ca1a"><input type="hidden" name="PINNum" value="3"><input type="hidden" name="id" value="5"><button class="btn btn-md btn-default" type="submit">Удалить</button></form></th></tr>
</tbody></table><br><button class="btn btn-md btn-default" type="submit">Сохранить</button><input type="hidden" name="ids" value="7,8,4,6,5">
</form></div>