.menu_wrap .nav > li {
  float: none;
  margin: 0;
  padding: 5px 25px 6px;
  position: relative;
  zoom: 1;
  display: inline-block;
  text-align: center;
}
.menu_wrap .nav > li a + ul {
  display: flex;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 50%;
  margin-left: -50%;
  height: auto;
  width: auto;
  min-width: 100%;
  list-style: none;
  z-index: 25;
  background:#f9f9f9;
  border-right:1px solid #e2e2e2;
  border-bottom:1px solid #e2e2e2;
  border-left:1px solid #e2e2e2;
  opacity: 0;
  transition: opacity 0.2s ease-in;
}
.menu_wrap .nav > li:hover a + ul,
.menu_wrap .nav > li a + ul:hover {
  opacity: 1;
  transition: opacity 0.2s ease-in;
}
.menu_wrap .nav > li a + ul li {
  padding: 0;
}
.menu_wrap .nav > li a + ul li a {
  display: block;
  text-transform: none;
  font-size: 12px;
  font-weight:400;
  color: #505050;
  line-height: 18px;
  background: none;
  text-shadow: none;
  border: 0;
  overflow: hidden;
  padding: 0 30px;
  max-height: 0;
  transition: all 0.3s linear;
}
.menu_wrap .nav > li:hover a + ul li a,
.menu_wrap .nav > li a + ul:hover li a {
  padding: 10px 30px;
  max-height: 60px;
}


/* __________________________________ //Bootstrap style __________________________________ */