<picture class="Element" style="--image: url(https://images.unsplash.com/photo-1511692277506-3be3a7ab1686)">
  <img src="https://images.unsplash.com/photo-1511692277506-3be3a7ab1686" alt="">
  <span class="Border"></span>
</picture>

.Element {
  position: relative;
  width: 200px;
  display: block;
}

.Element > img {
  box-shadow: 0 0 20px #bac3c3;
}

.Element > * {
  height: 100%;
  width: 100%;
  display: block;
}

.Element::before,
.Element::after{
  content: "";
  display: block;
  position: absolute;
  background-color: cyan;
  width: 50%;
  height: 50%;
  z-index: 1;
  background-image: var(--image);
  background-size: 200%;
  pointer-events: none;
  user-select: none;
}


.Element::after {
  bottom: 0;
  right: 0;
  background-position: right bottom;
}

.Border {
  top: 0;
  position: absolute;
  box-sizing: border-box;
  border: 15px #eb311f solid;
  transform: rotate(45deg);
}




















































































@use postcss-preset-env {
  stage: 0;
  autoprefixer: {
    grid: true;
  }
  browsers: [
    "last 1 Chrome versions",
    "last 1 Firefox versions",
    "last 1 Safari versions",
    "last 1 Edge versions"
  ]
}