styles.css

article,aside,details,figcaption,figure,footer,header,hgroup,main,nav,section,summary{display:block}audio,canvas,video{display:inline-block}audio:not([controls]){display:none;height:0}[hidden]{display:none}html{font-family:sans-serif;-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%}body{margin:0}a:focus{outline:thin dotted}a:active,a:hover{outline:0}h1{margin:.67em 0;font-size:2em}abbr[title]{border-bottom:1px dotted}b,strong{font-weight:bold}dfn{font-style:italic}hr{height:0;-moz-box-sizing:content-box;box-sizing:content-box}mark{color:#000;background:#ff0}code,kbd,pre,samp{font-family:monospace,serif;font-size:1em}pre{white-space:pre-wrap}q{quotes:"\201C" "\201D" "\2018" "\2019"}small{font-size:80%}sub,sup{position:relative;font-size:75%;line-height:0;vertical-align:baseline}sup{top:-0.5em}sub{bottom:-0.25em}img{border:0}svg:not(:root){overflow:hidden}
*, html, body {
  font-family: "HelveticaNeue-Light", "Helvetica Neue Light", "Helvetica Neue", Helvetica, Arial, "Open Sans", sans-serif;
}
h1, h2, h3 {
  margin: 0;
  font-weight: normal;
}
header {
  margin: 10px 0;
  text-align: center;
  font-size: 20px;
  white-space: nowrap;
}

.dropdown {
    position: relative;
    display: inline-block;
    outline-style: none;
}
.dropdown button:focus {
    outline-style: none;
    outline: 0;
}
.dropdown .dropdown-menu {
  text-align: left;
  position: absolute;
  top: 100%;
  display: none;
  margin: 0;
  list-style: none;
  width: 100%;
  padding: 0;
  z-index: 99;
  background: #CCCCCC;
  min-width: 150px;
  font-size: 16px;
}
.dropdown .dropdown-menu.active {
    display: block;
}
.dropdown#dd-lang .dropdown-menu {
  width: 605px;
  left: -200px;
}
.dropdown .dropdown-menu ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: inline-block;
  width: 200px;
  vertical-align: top;
}
.dropdown button {
  background: #ef6145; /* datausa hilite col */
  color: #FFFFFF;
  cursor: pointer;
  border: none;
  margin: 0;
  padding: 0.4em 0.8em;
  font-size: 1em;
}
.dropdown a {
    display: block;
    padding: 0.2em 0.8em;
    text-decoration: none;
    background: #CCCCCC;
    color: #333333;
}
.dropdown a:hover {
    background: #BBBBBB;
}
.box h3{
	text-align:center;
	position:relative;
	top:80px;
}
.box {
  display: inline-block;
  width: 250px;
  height: 250px;
	background:#FFF;
  margin: 10px;
}
div.prof {
/*    -webkit-box-flex: 1 0 300px;
    -moz-box-flex: 1 0 300px;
    -webkit-flex: 1 0 300px;
    -ms-flex: 1 0 300px;
    flex: 1 0 300px;*/
/*    -webkit-justify-content: center;
    -moz-justify-content: center;
    justify-content: center;
    -ms-flex-pack: center;
    flex-pack: center;*/
    display: -webkit-box;
    display: -moz-box;
    display: -ms-flexbox;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -ms-flex-align: center;
    flex-align: center;
/*    height: 200px;*/
/*    margin: 0 10px 20px;*/
/*    min-width: 300px;
    max-width: 400px;*/
    position: relative;
    background: #1d1d1d;
    background-size: cover !important;
    background-position: center center;
    cursor: pointer;
    flex-grow: 1;
}
div.prof.active {
  border: solid 4px #ef6145; /* datausa hilite col */
}
div.prof.active:hover:before {
  background-color: rgba(0, 0, 0, 0.5);
}
div.prof:before {
    content: "";
    position: absolute;
    height: 100%;
    width: 100%;
    left: 0;
    top: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
/*    opacity: 1;*/
/*    -moz-transition: background-color 0.1s;*/
/*    -o-transition: background-color 0.1s;*/
/*    -webkit-transition: background-color 0.1s;*/
/*    transition: background-color 0.1s;*/
/*    background: -webkit-linear-gradient(top, rgba(255,255,255,0) 0%, rgba(0,0,0,0) 1%, rgba(0,0,0,0.05) 26%, rgba(0,0,0,0.6) 71%, rgba(0,0,0,0.7) 100%);*/
}
div.prof:hover:before {
  background-color: rgba(0, 0, 0, 0.1);
}
div.prof span {
  position: absolute;
  bottom: 10px;
  left: 0px;
  color: white;
  display: block;
  text-align: center;
  width: 100%;
  font-size: 17px;
  font-family: "Pathway Gothic One", sans-serif
}

.interactive{
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
}

.viz, .geos {
  -webkit-box-flex: 1;
  -moz-box-flex: 1;
  -webkit-flex: 1;
  -ms-flex: 1;
  flex: 1;
}

.viz h2 {
  text-align: center;
  font-size: 18px;
  margin: 10px 0 0 0;
}

.geos {
  -webkit-justify-content: center;
  -moz-justify-content: center;
  justify-content: center;
  -ms-flex-pack: center;
  flex-pack: center;
  display: -webkit-box;
  display: -moz-box;
  display: -ms-flexbox;
  display: -webkit-flex;
  display: flex;
  -webkit-flex-wrap: wrap;
  -ms-flex-wrap: wrap;
  flex-wrap: wrap;
  -webkit-flex-direction: row;
  -moz-flex-direction: row;
  -ms-flex-direction: row;
  flex-direction: row;
  max-width: 100%;
}

.explore-title {
  position: relative;
  width: 100%;
  padding: 20% 20px;
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  margin: auto;
  color: rgba(255, 255, 255, 0.9);
  font-family: "Pathway Gothic One", sans-serif;
  font-size: 24px;
  font-weight: 300;
  text-transform: uppercase;
  text-align: center;
  text-decoration: none;
}

footer {
  width: 600px;
  margin: 40px auto;
}
footer a {
 color: #ef6145; /* datausa hilite col */
 text-decoration: none;
}