#staff-grid img {display:block; width:100%; height:auto; border-radius:4px; }
#staff-grid li.vacant {display:none;}
#staff-grid li {position: relative;
  min-height: 1px;
  padding-right: 15px;
  padding-left: 15px;
  width:100%;
  float:left;}
 #staff-grid li p {margin-bottom:8px;} 
  
 @media (min-width: 768px) {

#staff-grid li { 
  position: relative;
  min-height: 1px;
  padding-right: 15px;
  padding-left: 15px;
  width:25%;
  float:left;}
  } 
  
  @media (min-width: 992px) {
#staff-grid li { 
  position: relative;
  min-height: 1px;
  padding-right: 15px;
  padding-left: 15px;
  width:20%;
  float:left;}
  }