research.css

div.proj_content {
    border: #000 solid 2px;
    clear: left;
    padding: 1em;

}

div.proj_content.inactive {
    display: none;
}

html {
  overflow-y: scroll;
  position: relative;
  min-height: 100%;
  margin-bottom: 0px;
}

body {
  padding-top: 50px;
  min-height: 100% !important;
  height: 100% !important;
  font: 16px sans-serif;
}

* {
    margin: 0;
}

.wrapper {
    min-height: 100%;
    height: auto !important;
    height: 100%;
    margin: 0 auto -25px; /* the bottom margin is the negative value of the footer's height */
}
.footer, .push {
    height: 25px; /* .push must be the same height as .footer */
    background-color: #f5f5f5;
}

a.hovertext {
  position: relative;
  width: 300px;
  text-decoration: none !important;
  text-align: center;
}
a.hovertext:after {
  content: attr(title);
  position: absolute;
  left: 0;
  bottom: 0px;
  top: 280px;
  padding: 0.5em 20px;
  z-index: 1;
  width: 300px;
  height: 30px;
  background: rgba(0,0,0,0.8);
  text-decoration: none !important;
  color: #fff;
  opacity: 0;
  -webkit-transition: 0.5s;
  -moz-transition: 0.5s;
  -o-transition: 0.5s;
  -ms-transition: 0.5s;
}
a.hovertext:hover:after, a.hovertext:focus:after {
  opacity: 1.0;
}

div.hban {
   position: absolute;
   top: 225px;
   left: 100px;
   width: 1118px;
}

div.hban span {
   color: white;
   background: rgb(0, 0, 0); /* fallback color */
   background: rgba(0, 0, 0, 0.9);
   padding-left: 0px;
   padding-bottom: 10px;
}



span.text-content {
  background: rgba(0,0,0,0.5);
  color: white;
  cursor: pointer;
  display: table;
  height: 150px;
  left: 0;
  position: absolute;
  top: 0;
  width: 150px;
  opacity: 0;
  -webkit-transition: opacity 500ms;
  -moz-transition: opacity 500ms;
  -o-transition: opacity 500ms;
  transition: opacity 500ms;
}

ul.img-list li:hover span.text-content {
  opacity: 1;
}

span.text-content span {
  display: table-cell;
  text-align: center;
  vertical-align: middle;
}

ul.img-list {
  list-style-type: none;
  margin: 0;
  padding: 0;
  text-align: left;
}

ul.img-list li {
  display: inline-block;
  height: 150px;
  margin: 0 1em 1em 0;
  position: relative;
  width: 150px;
}