html {
	background: url('https://www.bing.com/th?id=OHR.SardineBait_FR-FR6373570079_1920x1080.jpg&rf=LaDigue_1920x1080.jpg&pid=hp') no-repeat center fixed;
	-webkit-background-size: cover;
	background-size: cover;
	margin:0; 
}