#portfolio {
  margin-top: 60px; }
  #portfolio #filters {
    list-style-type: none;
    height: 30px;
    margin-bottom: 10px;
    text-align: center;
    margin-top: -20px; }
    #portfolio #filters li {
      display: inline-block;
      font-size: 20px;
      margin: 0px 6px; }
      #portfolio #filters li.separator {
        color: #c0c0c0;
        font-weight: lighter; }
      #portfolio #filters li a {
        color: #3f3f3f;
        font-style: italic;
        -webkit-transition: color .2s;
        -moz-transition: color .2s;
        -ms-transition: color .2s;
        transition: color .2s; }
        #portfolio #filters li a:hover, #portfolio #filters li a.active {
          color: #16a399; }
  #portfolio #gallery_container {
    margin: 50px; }
    #portfolio #gallery_container .photo {
      width: 180px;
      margin: 10px;
      float: left;
      position: relative; }
      #portfolio #gallery_container .photo:hover .mask {
        display: block;
        opacity: 1;
        filter: alpha(opacity=100); }
      #portfolio #gallery_container .photo .mask {
        position: absolute;
        opacity: 0;
        filter: alpha(opacity=0);
        box-shadow: 0px 1px 5px 2px #16a399;
        top: 0px;
        left: 0px;
        border-radius: 4px;
        height: 100%;
        padding: 0px 20px; 
        width: 100%;
        background: #16a399;
        -webkit-transition: opacity .25s ease-in-out;
        -moz-transition: opacity .25s ease-in-out;
        transition: opacity .25s ease-in-out; }
        #portfolio #gallery_container .photo .mask h3 {
          color: #fff;
          font-size: 17px;
          position: relative;}
        #portfolio #gallery_container .photo .mask small {
          color: #f0f0f0;
          font-size: 13px;
          font-style: italic;
          position: relative;
          display: block; }
        #portfolio #gallery_container .photo .mask .more {
          color: #fff;
          font-size: 25px;
          font-weight: bold;
          position: absolute;
          bottom: 7%;
          left: 47%; }

/* Responsive
-------------------------------------------------- */
@media (max-width: 480px) {
  #portfolio #filters li {
    margin: 0px 4px; }
    #portfolio #filters li a {
      font-size: 18px; }
  #portfolio #gallery_container .photo {
    margin-left: 35px; }
    #portfolio #gallery_container .photo img {
      left: 10%; } }