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CSS

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HTML 

              
                <div class="dropdown">
  
  <button 
  class="dropdown-notify-btn"
  id="dLabel"
  type="button">
    <i class="fa fa-envelope-o"></i>
    <span class="badge">3</span>
    Messages
    <span class="caret"></span>
  </button>
  
  <ul class="dropdown-menu">
    <a href="#">
      <li class="dropdown-notify
      dropdown-notify-header">
        View All
      </li>
    </a>
    <a href="#">
      <li class="dropdown-notify">
        <p class="notify-title">Title 1</p>
        <p class="notify-msg">Enim facilisi mattis 
          taciti in iaculis parturient torquent justo 
          elit tincidunt eu interdum vestibulum dolor 
          adipiscing auctor sed parturient.
        </p>
        <p class="notify-date">11/17/2016</p>
      </li>
    </a>
    <a href="#">
      <li class="dropdown-notify">
        <p class="notify-title">Title 1</p>
          <p class="notify-msg">Enim facilisi mattis 
            taciti in iaculis parturient torquent justo 
            elit tincidunt eu interdum vestibulum dolor 
            adipiscing auctor sed parturient.
          </p>
          <p class="notify-date">11/17/2016</p>
      </li>
    </a>
    <a href="#">
      <li class="dropdown-notify">
        <p class="notify-title">Title 1</p>
        <p class="notify-msg">Enim facilisi mattis 
          taciti in iaculis parturient torquent justo 
          elit tincidunt eu interdum vestibulum dolor 
          adipiscing auctor sed parturient.
        </p>
        <p class="notify-date">11/17/2016</p>
      </li>
    </a>
  </ul>
  
</div>
!

CSS 

              
                html {height: 100%;}
body {
   background: #17469e;
   background-repeat: no-repeat;
    height: 100%;
    padding: 0;
    margin: 0;
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    align-items: center;
    justify-content: center;
}
* {
   font-family: 'Roboto', sans-serif;
}

.dropdown {
   display: inline-block;
}
ul.dropdown-menu {
  min-width: 500px;
   margin-top: 2px;
}
.dropdown-notify {
   display: block;
  padding: 10px 15px;
}
.dropdown-notify:hover {
   background: #eee;
}
.dropdown-notify-btn {
   border: 2px solid #00a99d;
   border-radius: 5px;
   padding: 8px 43px 8px 43px;
   background: white;
   text-transform: uppercase;
   font-weight: 500;
   color: #173e88;
}
.dropdown-notify-header {
   color: white;
   margin-top:-8px;
   border-top-left-radius: 5px;
   border-top-right-radius: 5px;
   background: #347ab8;
   font-weight: 700;
}
.dropdown-notify-header:hover {
   background: #347ab8;
   color: white;
   text-decoration: none;
}
.dropdown-menu a {
   color: #333;
}
.dropdown-menu a:hover {
   color: #333;
   text-decoration: none;
}
.badge {
   background: #F93943;
}
.fa-envelope-o {
   font-size: 18px;
   position: relative;
   top: 1px;
   left: -3px;
   margin-right: 2px;
   color: #173e88;
}
.notify-title {
   font-weight: 700;
}
.notify-message {
   margin-bottom: 5px;
}
.notify-date {
  margin-bottom: 0px;
  font-size: 12px;
  letter-spacing: 1px;
}
!

JS 

              
                $('.dropdown').hover(function() {
  $(this)
    .find('.dropdown-menu')
    .delay(100)
    .stop(true, true)
    .fadeIn(500);
  }, function() {
  $(this)
    .find('.dropdown-menu')
    .stop(true, true)
    .delay(500)
    .fadeOut(500);
});
!
999px

Console