.teammate img{
  -webkit-filter: grayscale(100%); /* Safari 6.0 - 9.0 */
  filter: grayscale(100%);
}

.topbar-menu > ul > li > a {
  display: block;
  position: relative;
  color: #4c4c4c;
  font-size: 16px;
  font-weight: 600;
  padding-left: 20px;
  padding-right: 20px
  text-decoration: none;
}

.portfolio-thumb img {
  padding: 20px;
}