An example zero error to add infinite dynamic border box

border.scss

.used-biocidal-box {
  border: 1px solid #dddfe2;
  padding: 10px 10px;
  font-family: 'SF UI Display', sans-serif;
  font-size: 14px;
}

.used-biocidal-box:not(:first-child) {
  border-top: none;
}