Method 1 :
Add this CSS code in Theme customizer :
.pusher {
min-height: 100vh;
}
Method 2 :
This tip will show you how you can force WPLMS content area to cover full screen height.
1. Go to WP Admin -> WPLMS -> Footer -> Google analytics code
2. Paste/append below code in this area :
<script>
jQuery(document).ready(function($){
var $headerheight=$('.content').offset().top;
var $footerheight=$('footer').height();
var $windowheight= $(window).height();
var $contentheight= $('.content').height() +$headerheight+$footerheight;
if($contentheight < $windowheight){
$contentheight = $windowheight - $headerheight - $footerheight-30;
$('.content').css('height', $contentheight+'px');
}
});
</script>
Check this video :