html,
body {
  height: 100%;
  margin: 0;
  font-size: 16px;
  font-family: "Lato", sans-serif;
  font-weight: 400;
  line-height: 1.8em;
  color: black;
}
.pimg1 {
  background-image: url(images/gt1.jpg);
  min-height: 100%;
}
.pimg2 {
  background-image: url(images/gt3.jpg);
  min-height: 500px;
}
.pimg3 {
  background-image: url(images/gt2.jpg);
  min-height: 500px;
}
.pimg4 {
    background-image: url(images/gt5.jpg);
    min-height: 500px;
  }
.pimg1,
.pimg2,
.pimg3,
.pimg4 {
  position: relative;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-attachment: fixed;
}

.ptext {
  position: absolute;
  top: 50%;
  width: 100%;
  text-align: center;
  color: black;
  font-size: 15px;
  letter-spacing: 8px;
  text-transform: uppercase;
}
.textBg {
  background: #000f0c;
  color: #fff;
  padding: 20px;
}

.section {
  padding: 50px 80px;
  text-align: center;
}
.section-light {
  background-color:black;
  color: burlywood;
}
.section-dark {
  background-color: #282e34;
  color: #ddd;
}