Overleaf/services/web/frontend/stylesheets/app/features.less

.long-form-features {
  h2 {
    margin-top: 0;
    margin-bottom: @line-height-computed;
  }
  img {
    border-radius: 3px;
    -webkit-box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    max-width: 100%;
    height: auto;
  }
  h3 {
    margin: 0;
  }
  i {
    color: lighten(@blue, 15%);
  }
}