.site_header{
  width: 100%;
  height: 53px;
  background: url(http://spartanets.ru/images/site_header/top.jpg) #000 top left no-repeat;
  margin-bottom: 20px;
  font-family: Tahoma;
}

.site_menu_main{
  float: right;
  height: 53px;
  width: 75px;
  line-height: 50px;
  color: #fff;
}

.site_menu_main a:link, .site_menu_main a:visited, .site_menu_main a:hover{
  color: #fff;
  font-weight: 900;
  font-size: 12px;
  text-decoration: underline;
}

.site_menu_left{
  float: left;
  height: 53px;
  width: 500px;
}

.site_menu_left ul{
  margin-left: 5px;
  list-style: none;
}

.site_menu_left li{
  float: left;
  line-height: 48px;
  font-family: Tahoma;
  font-size: 14px;
  color: #535353;
  font-weight: normal;
  margin: 5px;
  max-width: 750px;
}

.site_menu_left li a:link, .site_menu_left li a:hover, .site_menu_left li a:visited{
  background: #ffffff;
  padding: 4px;
  text-decoration: underline;
}