1) Click into “design” and into “edit html/css”
2) Click into “main_style.css” to open the css page
3) Here locate this code:
.singlepage-scroller .slide {
background-attachment: fixed;
width: 100%;
min-height: 200px;
position: relative;
}
4) Add the highlighted code below
.singlepage-scroller .slide {
background-attachment: fixed;
width: 100%;
min-height: 200px;
position: relative;
background-position: center top !important;
-webkit-background-size: 100% auto !important;
-moz-background-size: 100% auto !important;
-o-background-size: 100% auto !important;
background-size: 100% auto !important;
}
5) Save your change and re-publish the website