a.button {
  border-top: solid 1px #cbcbcb;
  border-left: solid 1px #b7b7b7;
  border-right: solid 1px #b7b7b7;
  border-bottom: solid 1px #b3b3b3;
  color: #303030;
  line-height: 25px;
  font-size: 15px;
  padding: 8px 4px 8px 4px;
  display: block;
  float: left;
  width: 190px;
  margin-right: 14px;  
  margin-bottom: 14px;  
  background: #fdfdfd; /* Old browsers */
  background: -moz-linear-gradient(top,  #fdfdfd 0%, #f2f2f2 100%); /* FF3.6+ */
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#fdfdfd), color-stop(100%,#f2f2f2)); /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top,  #fdfdfd 0%,#f2f2f2 100%); /* Chrome10+,Safari5.1+ */
  background: -o-linear-gradient(top,  #fdfdfd 0%,#f2f2f2 100%); /* Opera 11.10+ */
  background: -ms-linear-gradient(top,  #fdfdfd 0%,#f2f2f2 100%); /* IE10+ */
  background: linear-gradient(top,  #fdfdfd 0%,#f2f2f2 100%); /* W3C */
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fdfdfd', endColorstr='#f2f2f2',GradientType=0 ); /* IE6-9 */
  -webkit-box-shadow: 10px 10px 5px #888;
  -moz-box-shadow: 10px 10px 5px #888;
  box-shadow: 0px 1px 5px #e8e8e8;
}
a.button:hover {
  border-top: solid 1px #b7b7b7;
  border-left: solid 1px #b3b3b3;
  border-right: solid 1px #b3b3b3;
  border-bottom: solid 1px #b3b3b3;
  background: -moz-linear-gradient(top,  #fdfdfd 0%, #f6f6f6 100%); /* FF3.6+ */
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#fdfdfd), color-stop(100%,#f6f6f6)); /* Chrome,Safari4+ */
  background: -webkit-linear-gradient(top,  #fdfdfd 0%,#fff 100%); /* Chrome10+,Safari5.1+ */
  background: -o-linear-gradient(top,  #fdfdfd 0%,#f6f6f6 100%); /* Opera 11.10+ */
  background: -ms-linear-gradient(top,  #fdfdfd 0%,#f6f6f6 100%); /* IE10+ */
  background: linear-gradient(top,  #fdfdfd 0%,#f6f6f6, 100%); /* W3C */
  filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#fdfdfd', endColorstr='#f6f6f6',GradientType=0 ); /* IE6-9 */
  text-decoration: none;
}

a.button span {
  padding-left: 40px;
  display: block;
  height: 23px;
}

#interprete span {
  background: transparent url(../imagenes/interprete.png) 12px 50% no-repeat;
}

#ejemplos span {
  background: transparent url(../imagenes/ejemplos.png) 12px 50% no-repeat;
}

#web span {
  background: transparent url(../imagenes/web.png) 12px 50% no-repeat;
}

#manual span {
  background: transparent url(../imagenes/manual.png) 12px 50% no-repeat;
}

#procesando span {
    background: transparent url(../imagenes/procesando.gif) 12px 50% no-repeat;
}
