I do not know where the error may be, but I have an HTML table where I want it to have no space between rows and they are all together.
If I put this table in JSFiddle it works but when I use it on my website and it fails.
table {
border-spacing: 0;
border-collapse: collapse;
}
<table width="100%" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td>
<input type="text" id="cantidad" name="cantidad" class="form-control" onKeyUp="formula()">
</td>
<td>
<select class="form-control" name="articulo" id="articulo" onchange="change_documento90(); change_documento91()" onKeyUp="formula()" required>
<option value=""> </option>
<option value="cojin">cojin </option>
<option value="mesa">mesa </option>
<option value="Prueba">Prueba </option>
<option value="silla">silla </option>
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario" value="" onKeyUp="formula()" required/>
</td>
<td>
<input class="form-control " type="text" name="descuento" value="" onKeyUp="formula()" required/>
</td>
<td>
<select class="form-control" name="iva" id="iva" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total" value="" onKeyUp="formula()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion" value="" onKeyUp="formula()" required/>
</td>
<td>
<input class="form-control " type="text" name="comentario" value="" onKeyUp="formula()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad1" class="form-control" onKeyUp="formula1()">
</td>
<td>
<select class="form-control" id="articulo1" name="articulo1" onchange="change_documento92(); change_documento93()" onKeyUp="formula1()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario1" value="" onKeyUp="formula1()" />
</td>
<td>
<input class="form-control " type="text" name="descuento1" value="" onKeyUp="formula1()" required/>
</td>
<td>
<select class="form-control" name="iva1" id="iva1" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total1" value="" onKeyUp="formula1()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion1" value="" onKeyUp="formula1()" />
</td>
<td>
<input class="form-control " type="text" name="comentario1" value="" onKeyUp="formula1()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad2" class="form-control" onKeyUp="formula2()">
</td>
<td>
<select class="form-control" id="articulo2" name="articulo2" onchange="change_documento94(); change_documento95()" onKeyUp="formula2()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario2" value="" onKeyUp="formula2()" />
</td>
<td>
<input class="form-control " type="text" name="descuento2" value="" onKeyUp="formula2()" required/>
</td>
<td>
<select class="form-control" name="iva2" id="iva2" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total2" value="" onKeyUp="formula2()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion2" value="" onKeyUp="formula2()" />
</td>
<td>
<input class="form-control " type="text" name="comentario2" value="" onKeyUp="formula2()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad3" class="form-control" onKeyUp="formula3()">
</td>
<td>
<select class="form-control" id="articulo3" name="articulo3" onchange="change_documento96(); change_documento97()" onKeyUp="formula3()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario3" value="" onKeyUp="formula3()" />
</td>
<td>
<input class="form-control " type="text" name="descuento3" value="" onKeyUp="formula3()" required/>
</td>
<td>
<select class="form-control" name="iva3" id="iva3" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total3" value="" onKeyUp="formula3()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion3" value="" onKeyUp="formula3()" />
</td>
<td>
<input class="form-control " type="text" name="comentario3" value="" onKeyUp="formula3()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad4" class="form-control" onKeyUp="formula4()">
</td>
<td>
<select class="form-control" id="articulo4" name="articulo4" onchange="change_documento98(); change_documento99()" onKeyUp="formula4()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario4" value="" onKeyUp="formula4()" />
</td>
<td>
<input class="form-control " type="text" name="descuento4" value="" onKeyUp="formula4()" required/>
</td>
<td>
<select class="form-control" name="iva4" id="iva4" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total4" value="" onKeyUp="formula4()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion4" value="" onKeyUp="formula4()" />
</td>
<td>
<input class="form-control " type="text" name="comentario4" value="" onKeyUp="formula4()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad5" class="form-control" onKeyUp="formula5()">
</td>
<td>
<select class="form-control" id="articulo5" name="articulo5" onchange="change_documento100(); change_documento101()" onKeyUp="formula5()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario5" value="" onKeyUp="formula5()" />
</td>
<td>
<input class="form-control " type="text" name="descuento5" value="" onKeyUp="formula5()" required/>
</td>
<td>
<select class="form-control" name="iva5" id="iva5" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total5" value="" onKeyUp="formula5()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion5" value="" onKeyUp="formula5()" />
</td>
<td>
<input class="form-control " type="text" name="comentario5" value="" onKeyUp="formula5()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad6" class="form-control" onKeyUp="formula6()">
</td>
<td>
<select class="form-control" id="articulo6" name="articulo6" onchange="change_documento102(); change_documento103()" onKeyUp="formula6()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario6" value="" onKeyUp="formula6()" />
</td>
<td>
<input class="form-control " type="text" name="descuento6" value="" onKeyUp="formula6()" required/>
</td>
<td>
<select class="form-control" name="iva6" id="iva6" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total6" value="" onKeyUp="formula6()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion6" value="" onKeyUp="formula6()" />
</td>
<td>
<input class="form-control " type="text" name="comentario6" value="" onKeyUp="formula6()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad7" class="form-control" onKeyUp="formula7()">
</td>
<td>
<select class="form-control" id="articulo7" name="articulo7" onchange="change_documento104(); change_documento105()" onKeyUp="formula7()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario7" value="" onKeyUp="formula7()" />
</td>
<td>
<input class="form-control " type="text" name="descuento7" value="" onKeyUp="formula7()" required/>
</td>
<td>
<select class="form-control" name="iva7" id="iva7" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total7" value="" onKeyUp="formula7()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion7" value="" onKeyUp="formula7()" />
</td>
<td>
<input class="form-control " type="text" name="comentario7" value="" onKeyUp="formula7()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad8" class="form-control" onKeyUp="formula8()">
</td>
<td>
<select class="form-control" id="articulo8" name="articulo8" onchange="change_documento106(); change_documento107()" onKeyUp="formula8()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario8" value="" onKeyUp="formula8()" />
</td>
<td>
<input class="form-control " type="text" name="descuento8" value="" onKeyUp="formula8()" required/>
</td>
<td>
<select class="form-control" name="iva8" id="iva8" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total8" value="" onKeyUp="formula8()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion8" value="" onKeyUp="formula8()" />
</td>
<td>
<input class="form-control " type="text" name="comentario8" value="" onKeyUp="formula8()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad9" class="form-control" onKeyUp="formula9()">
</td>
<td>
<select class="form-control" id="articulo9" name="articulo9" onchange="change_documento108(); change_documento109()" onKeyUp="formula9()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario9" value="" onKeyUp="formula9()" />
</td>
<td>
<input class="form-control " type="text" name="descuento9" value="" onKeyUp="formula9()" required/>
</td>
<td>
<select class="form-control" name="iva9" id="iva9" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total9" value="" onKeyUp="formula9()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion9" value="" onKeyUp="formula9()" />
</td>
<td>
<input class="form-control " type="text" name="comentario9" value="" onKeyUp="formula9()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad10" class="form-control" onKeyUp="formula10()">
</td>
<td>
<select class="form-control" id="articulo10" name="articulo10" onchange="change_documento110(); change_documento111()" onKeyUp="formula10()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario10" value="" onKeyUp="formula10()" />
</td>
<td>
<input class="form-control " type="text" name="descuento10" value="" onKeyUp="formula10()" required/>
</td>
<td>
<select class="form-control" name="iva10" id="iva10" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total10" value="" onKeyUp="formula10()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion10" value="" onKeyUp="formula10()" />
</td>
<td>
<input class="form-control " type="text" name="comentario10" value="" onKeyUp="formula10()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad11" class="form-control" onKeyUp="formula11()">
</td>
<td>
<select class="form-control" id="articulo11" name="articulo11" onchange="change_documento112(); change_documento113()" onKeyUp="formula11()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario11" value="" onKeyUp="formula11()" />
</td>
<td>
<input class="form-control " type="text" name="descuento11" value="" onKeyUp="formula11()" required/>
</td>
<td>
<select class="form-control" name="iva11" id="iva11" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total11" value="" onKeyUp="formula11()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion11" value="" onKeyUp="formula11()" />
</td>
<td>
<input class="form-control " type="text" name="comentario11" value="" onKeyUp="formula11()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad12" class="form-control" onKeyUp="formula12()">
</td>
<td>
<select class="form-control" id="articulo12" name="articulo12" onchange="change_documento114(); change_documento115()" onKeyUp="formula12()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario12" value="" onKeyUp="formula12()" />
</td>
<td>
<input class="form-control " type="text" name="descuento12" value="" onKeyUp="formula12()" required/>
</td>
<td>
<select class="form-control" name="iva12" id="iva12" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total12" value="" onKeyUp="formula12()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion12" value="" onKeyUp="formula12()" />
</td>
<td>
<input class="form-control " type="text" name="comentario12" value="" onKeyUp="formula12()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad13" class="form-control" onKeyUp="formula13()">
</td>
<td>
<select class="form-control" id="articulo13" name="articulo13" onchange="change_documento116(); change_documento117()" onKeyUp="formula13()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario13" value="" onKeyUp="formula13()" />
</td>
<td>
<input class="form-control " type="text" name="descuento13" value="" onKeyUp="formula13()" required/>
</td>
<td>
<select class="form-control" name="iva13" id="iva13" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total13" value="" onKeyUp="formula13()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion13" value="" onKeyUp="formula13()" />
</td>
<td>
<input class="form-control " type="text" name="comentario13" value="" onKeyUp="formula13()" />
</td>
</tr>
<tr>
<td>
<input type="text" name="cantidad14" class="form-control" onKeyUp="formula14()">
</td>
<td>
<select class="form-control" id="articulo14" name="articulo14" onchange="change_documento118(); change_documento119()" onKeyUp="formula14()" required>
<option value=""> </option>
echo
<option value="cojin">cojin </option>
echo
<option value="mesa">mesa </option>
echo
<option value="Prueba">Prueba </option>
echo
<option value="silla">silla </option>
echo
<option value="sillon">sillon </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_unitario14" value="" onKeyUp="formula14()" />
</td>
<td>
<input class="form-control " type="text" name="descuento14" value="" onKeyUp="formula14()" required/>
</td>
<td>
<select class="form-control" name="iva14" id="iva14" disabled>
<option value=""> </option>
</select>
</td>
<td>
<input class="form-control " type="text" name="precio_total14" value="" onKeyUp="formula14()" readonly/>
</td>
<td>
<input class="form-control " type="text" name="recepcion14" value="" onKeyUp="formula14()" />
</td>
<td>
<input class="form-control " type="text" name="comentario14" value="" onKeyUp="formula14()" />
</td>
</tr>
</tbody>
</table>