body{padding:70px 10px;background:#000;color:#fff;}
.navbar{background:#000;border-bottom:solid 0.5px #900;}
.error,.err,.red{color:red;background:transparent;}
.pic {
  max-width: 270px;
  max-height: 152px;
  position: relative;
  display: inline-block;
  margin-bottom: 5px;
}
.pic:hover > .overlay {
    position: absolute;
    top: 0;
    width:100%;
    height:100%;
    left: 0;
    background-color:#000;
    opacity:0.5;
    z-index: 100;
    display: block;
}