body
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  font-size: 1em;
  background-color: #FFFFFF;
}

.full_vermell
{
  /*background-color: #A02015;*/
  background-image:url(img/punt.jpg);
}

.link a
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: center /*left*/;
  vertical-align: middle /*top*/;
  font-size: 1em;
  color: #FFFFFF;
  text-decoration: none;
}

.link a:hover
{
  font-weight: bold;
}

.capsalera
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: center;
  vertical-align: middle;
  font-size: 1em;
  /*color:  #A02015/*#930C01*/;*/
  padding: 5,10;
  /*background-color: #A02015;*/
  /*background-image: url(../img/vermell_degradat.png);*/
  background-repeat: repeat-x;
  background-position: top;
}

.lateral
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: left;
  vertical-align: middle;
  font-size: 1em;
  /*color: #A02015;*/
  padding: 5,10;
  /*background-color: #A02015;*/
  /*background-image: url(../img/vermell_degradat.png);*/
  background-repeat: repeat-x;
  background-position: top;
}

.senar
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: center;
  vertical-align: middle;
  font-size: 1em;
  /*color: #A02015;*/
  padding: 5,10;
  background: #FFFFFF;
}

.parell
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: center;
  vertical-align: middle;
  font-size: 1em;
  /*color: #A02015;*/
  padding: 5,10;
  background: #FFFFFF;
}

.select
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: left;
  vertical-align: middle;
  font-size: 1em;
  /*color: #A02015;*/
  background-color: #FFFFFF;
}

.text2
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: left;
  vertical-align: middle;
  font-size: 1em;
  color: #FFFFFF;
}

.text6
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: right;
  vertical-align: middle;
  font-size: 1em;
  color: #FFFFFF;
}

.text8
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: left;
  vertical-align: top;
  font-size: 1em;
  color: #FFFFFF;
}

.text7
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: center;
  vertical-align: middle;
  font-size: .8em;
  color: #FFFFFF;
}

.text5
{
  font-family: Arial, Helvetica, Tahoma, sans-serif;
  text-align: justify;
  vertical-align: middle;
  font-size: 1em;
  color: #FFFFFF;
}

.marc_error
{
  border-width: 1px;
  border-color: #FFFFFF;
  border-style: solid;
}

.text_error
{
  text-align: left;
  vertical-align: middle;
  font-size: 1em;
  color: #FFFFFF;
}

<!--
.Estilo1 {
	color: #000000;
	font-weight: bold;
}
-->
#centrada{ 
 width: 800px; //Esto es MUY importante, dale el ancho que necesites 
 margin: 10px auto;
 padding: 0px; 
}