.challenge-opportunities-section 
.corner-box {
  position: relative; /* Needed for absolute positioning of corners */
  display: flex;
}

.challenge-opportunities-section 
.corner {
  position: absolute;
  width: 48px; /* Length of the corner border arm */
  height: 48px; /* Length of the corner border arm */
  border: 8px solid white; /* Border style for the corners */
}

.challenge-opportunities-section 
.top-left {
  top: 0;
  left: 0;
  border-right: none;
  border-bottom: none;
}

@media (max-width: 1023px) {
  .challenge-opportunities-section h2 {
    padding-left: 0.5em;
    /*line-height: 0.25em;*/
  }
  .challenge-opportunities-section h3 {
    margin-top: 0;
    margin-bottom:0;
  }
}

@media screen and (min-width: 1024px ) {
  .challenge-opportunities-section h3 {
    padding-top: 0.5em;
    font-size: 1.4em;
  }

  .challenge-opportunities-section h2 {
    font-size: 2em;
    padding-top: 0.5em;
    padding-left: 0.7em;
  }

  .challenge-opportunities-section .paragraph--type--text {
    height: 25em;
  }
}

.challenge-opportunities-section img {
  height: 20em;
  object-fit: cover;
}