html,
body {
  height: 100%;
  margin: 0;
  font-size: 16px;
  font-family: "Roboto", sans-serif;
  font-weight: 400;
  line-height: 1.8em;
  color: aliceblue;
}
.img1 {
  background-image: url(img/img2.jpg);
  min-height: 100%;
}
.img2 {
  background-image: url(img/img1.jpg);
  min-height: 500px;
}
.img3 {
  background-image: url(img/img3.jpg);
  min-height: 100%;
}
.img1,
.img2,
.img3 {
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
}
.text {
  position: absolute;
  top: 50%;
  width: 100%;
  text-align: center;
  font-size: 40px;
  letter-spacing: 0.2cm;
  text-transform: uppercase;
  color: aliceblue;
  font-weight: 600;
  font-family: "Roboto", sans-serif;
  line-height: 65px;
}
.textbg {
  background-color: rgba(143, 177, 206, 0.6);
}
.section {
  text-align: center;
  padding: 50px 80px;
}
.section-light {
  background-color: aliceblue;
  color: #666;
}
.section-dark {
  background-color: #666;
  color: aliceblue;
}