Rounded image with duotone

by jorgeluis

HTML

<ul class="photos">
  <li class="frame"><img alt="" src="//placekitten.com/300/300"></li>
  <li class="frame"><img alt="" src="//placekitten.com/300/300"></li>
</ul>

CSS

.photos {
  list-style-type: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: center;
}

.frame {
  position: relative;
  flex: 0 0 20%;
  margin: 1%;
  border-radius: 50%;
}

.frame::after,
.frame::before {
  opacity: 1;
  content: '';
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  border-radius: 50%;
  transition: opacity 0.3s;
}

.frame::before {
  background-color: rgb(240, 14, 46);
  mix-blend-mode: darken;
}

.frame::after {
  background-color: rgb(25, 37, 80);
  mix-blend-mode: lighten;
  position: absolute;
}


.frame:hover::after,
.frame:hover::before {
  opacity: 0;
}

.frame > img {
  display: block;
  width: 100%;
  border-radius: 50%;
}