loading screen

add_action('jnews_after_body',function (){
	?>
	<div class="jnews_loading_screen"
         style="
    width: 100%;
    height: 100vh;
    z-index: 100;
    background: blue;
    position: fixed;
    left: 0;
    top:0;">
	</div>
	<script>
		(function ($){
			window.addEventListener('load',function (){
				$('.jnews_loading_screen').fadeOut(400)
			})
		})(jQuery)
	</script>
	<?php
});