@keyframes heroFade {
  0%   { background-image: url("/images/services-images-1.jpg"); opacity: 1; }
  20%  { background-image: url("/images/services-images-1.jpg"); opacity: 1; }
  25%  { background-image: url("/images/services-images-1.jpg"); opacity: 1; }

  25%  { background-image: url("/images/services-images-2.jpg"); opacity: 1; }
  30%  { background-image: url("/images/services-images-2.jpg"); opacity: 1; }
  45%  { background-image: url("/images/services-images-2.jpg"); opacity: 1; }
  50%  { background-image: url("/images/services-images-2.jpg"); opacity: 1; }

  50%  { background-image: url("/images/services-images-3.jpg"); opacity: 1; }
  55%  { background-image: url("/images/services-images-3.jpg"); opacity: 1; }
  70%  { background-image: url("/images/services-images-3.jpg"); opacity: 1; }
  75%  { background-image: url("/images/services-images-3.jpg"); opacity: 1; }

  75%  { background-image: url("/images/services-images-4.jpg"); opacity: 1; }
  80%  { background-image: url("/images/services-images-4.jpg"); opacity: 1; }
  95%  { background-image: url("/images/services-images-4.jpg"); opacity: 1; }

  100% { background-image: url("/images/services-images-1.jpg"); opacity: 1; }
}

.service-descriptions-container {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 40px;
  justify-content: center; /* centers the row, including the last row */
  align-items: stretch;
  width: 100%;
}

/* 2 per row */
.service-description {
  display: flex;
  flex-direction: column;

  /* two columns with gap handled cleanly */
  flex: 0 1 500px;          /* preferred card width */
  max-width: calc(50% - 20px);

  font-size: 1.1rem;
  line-height: 1.6;
  padding: 0 20px;
  overflow: hidden;
  border: solid 10px #ffffff2f;
  box-shadow: rgba(0, 0, 0, 0.553) 0px 5px 15px;
  margin: 0;               /* IMPORTANT: don't auto-center inside flex */
}

.service-description > h3 {
  margin-top: 0;
  margin-bottom: 10px;
  font-size: 1.5rem;
  color: #333333;
  text-align: center;
}

.contact-us-button {
  margin-top: 30px;
  margin-bottom: 20px;
}

/* 1 per row on phones */
@media (max-width: 700px) {
  .service-description {
    flex-basis: 100%;
    max-width: 80%;
  }
}