.colorbox.cboxElement {
  overflow: hidden;
  border-radius: 15px;
  display: inline-block;
  position: relative;
}

.colorbox.cboxElement:after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  -moz-box-shadow:    inset 0 0 30px rgba(51, 51, 51, .6);
  -webkit-box-shadow: inset 0 0 30px rgba(51, 51, 51, .6);
  box-shadow:         inset 0 0 30px rgba(51, 51, 51, .6);
}

.colorbox.cboxElement img{
  border-radius: 15px;
  transition: all .3s;
  margin: 0;
}

.colorbox.cboxElement:is(:hover, :focus) img {
  transform: scale(1.1);
}