#mainnavi1:hover  {
  background-color: #339900;
  border-bottom-color:#006600;
}

#mainnavi2:hover  {
  background-color: #0066CC;
  border-bottom-color:#003399;
}

#mainnavi3:hover  {
  background-color: #996633;
  border-bottom-color: #663300;
}

#mainnavi4:hover  {
  background-color: #D51D15;
  border-bottom-color: #990000;
}

#mainnavi5:hover  {
  background-color: #CC0066;
  border-bottom-color: #990066;
}

#mainnavi6:hover  {
  background-color: #FF9900;
  border-bottom-color: #996600;
}

#mainnavi7:hover  {
  background-color: #339900;
  border-bottom-color:#006600;
}