.nav_menu_container {
  position: relative;
  box-sizing: border-box;
  z-index: 999;
  border-bottom: 1px solid #ddd;
}

.nav_menu {
  display: table;
  width: 100%;
  padding: 0;
  position: relative;
  /* For IE7 */
  margin: 0 0 -1px 0;
  line-height: 1;
}

.nav_menu > li {
  display: table-cell;
  margin: 0;
  border-right: 1px solid #ddd;
  line-height: 10px;
}

.nav_menu > li > a {
  font-size: 12px;
  outline: 0;
  text-decoration: none;
  display: block;
  padding: 4px 12px 9px;
  border: 1px solid rgba(0, 0, 0, 0);
  margin: -1px;
  margin-bottom: 0;
  z-index: 1;
  position: relative;
  transition-property: background, border;
  transition-duration: 0.5s;
  transition-timing-function: ease;
}

.nav_menu > li > a > h4 {
  font-size: 16px;
  margin-bottom: 0;
  letter-spacing: 0;
}

.nav_menu > li > a > small {
  margin:0;
  padding:0;
  font-size: 92%;
  color: #7b7b7b;
}

.nav_menu_drop {
  padding-right: 30px;
}

.nav_menu li.nav_menu_button {
  display: none;
  -webkit-transition: none
  -moz-transition: none;
  -o-transition: none;
  -ms-transition: none;
  transition: none;
}


/* Right aligned menu item */

.nav_menu li.nav_menu_right {
  border-right: 0;
}

.nav_menu a.iris_logo,
.nav_menu li:hover > a.iris_logo {
  background-image: url(http://ds.iris.edu/static/img/layout/logos/header-logo.png);
  width: 65px;
  height: 52px;
  background-size: contain;
}

.nav_menu li:hover > a.iris_logo {
  box-shadow: inset 0 0 20px hsl(268, 50%, 20%);
  border-color: hsl(268, 50%, 10%);
}


/*  _______________________________________________

    02 MEGA MENU CONTAINERS
    _______________________________________________  */

.nav_menu_dropdown_container {
  position: absolute;
  margin: 0;
  padding: 0;
  left: -1px;
  right: -1px;
  z-index: 0;
  overflow-y: hidden;
  overflow-x: visible;
}

.nav_menu_dropdown {
  padding: 8px 0 12px;
  /*border-radius: 0 0 9px 9px;*/
  -webkit-transition: margin 0.5s ease;
  -moz-transition: margin 0.5s ease;
  -o-transition: margin 0.5s ease;
  -ms-transition: margin 0.5s ease;
  transition: margin 0.5s ease;
  border: 1px solid #ccc;
  background-color: #f0f0f0;
  background-image: linear-gradient(to bottom, #f0f0f0, #fff);
  margin: -999px 0 12px 0;
  border-top-width: 0;
  box-shadow: 0 7px 7px -3px rgba(0, 0, 0, 0.15);
}

.nav_menu_dropdown h1,
.nav_menu_dropdown h2,
.nav_menu_dropdown h3,
.nav_menu_dropdown h4,
.nav_menu_dropdown p,
.nav_menu_dropdown ul > li {
  line-height: 17px;
}

.nav_menu_dropdown ul {
  list-style: none;
  padding-left: 0;
}

.nav_menu_dropdown ul > li {
  margin: 4px 0;
}

.nav_menu_dropdown h3 {
  margin: 0 0 8px;
}

.nav_menu_dropdown h4 {
  font-size: 14px;
  margin: 4px -4px 0 -4px;
  padding: 2px 4px 4px 4px;
  color: #666;
  background: #ccc;
}

.nav_menu_dropdown h5 {
  margin: 4px 0 8px 0;
  font-size: 14px;
}

.nav_menu_dropdown img.block-left {
  float: left;
  width: 90px;
  margin: 10px 0 0 0;
}

.nav_menu_dropdown div.block-right {
  margin-left: 100px;
}

.nav_menu_dropdown div.block-bottom {
  margin-bottom: 100px;
}


/* Showing Drop Down on Mouse Hover */

.nav_menu > li:hover > a {
  background: #f0f0f0;
  border-color: #ccc;
  border-bottom-color: #f0f0f0;
}

.nav_menu > li:hover .nav_menu_dropdown {
  margin-top: -1px;
}

.breadcrumb {
  border-top-width: 0;
}