body, h1 {
  font-family: "Raleway", Arial, sans-serif;
}

h1 {
  letter-spacing: 6px;
}

.w3-row-padding img {
  margin-bottom: 12px;
}

/* hover text over image */

.image-container {
  position: relative;
  width: 100%;
  overflow: hidden;
}

.image-container img {
  display: block;
  width: 100%;
  height: auto;
  filter: grayscale(75%);
  transition: filter 0.4s ease;
}

.image-container:hover img {
  filter: grayscale(0%);
}

.overlay-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  color: white;
  background-color: rgba(0, 0, 0, 0.6); /* semi-transparent background */
  padding: 12px 20px;
  text-align: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  font-family: "Raleway", sans-serif;
  font-size: 18px;
}

.image-container:hover .overlay-text {
  opacity: 1;
}

/* About page */