style.css

html,body{
height:100%;
margin: 0;
font-size: 16px;
font-family: "Lato",sans-serif;
font-weight: 400;
line-height: 1.8em;
color: #666;
}
.pimg1{
    background-image: url(images/image1.png);
    min-height: 100%;
   
}
.pimg2{
    background-image: url(images/image2.png);
    min-height: 600px;
   
}
.pimg3{
    background-image: url(images/image3.png);
    min-height: 600px;
   
}
.pimg1,.pimg2 ,.pimg3{
    position: relative;
    background-size: cover;
    background-repeat: no-repeat;
    background-attachment: fixed;
}
.ptext{
    position: absolute;
    top: 50%;
    width: 100%;
    text-align: center;
    color: black;
    font-size: 27px;
    letter-spacing: 8px;
    text-transform: uppercase;
}
.textBg{
    background: #313534;
    color: white;
    padding: 20px;

}
.section{
    padding: 50px 80px;
    text-align: center;

}
.section-light{
    background-color: #f4f4f4;
    color:#666 ;

}
section-dark{
    background-color: #282e34;
    color: #ddd;
}