<body>
<div id="mainDiv" class="mainDiv">
<div class="txtDesc"> Do: </div>
<div class="inpEl">
  <input type="text" value="" style="width:100%"
         id="tfDo" class="myTextInput"/>
</div>
<div class="txtDesc"> Temat: </div>
<div class="inpEl">
  <input type="text" value="" style="width:100%"
         id="tfTemat" class="myTextInput"/>
  </div>
<div class="txtDesc">Tre:</div>
<div>
  <textarea class="myTextInput" id="taTresc" style="width:100%;"
            rows="10" cols="50"></textarea>
</div>
<div style="width:50%;margin:0 auto;text-align:center;">
  <input type="button" value="Wylij" class="myButton" id="btnWyslij"
         onclick="startRequest();" style="margin-top:10px;" />
</div>
</div>
</body>