@media all and (max-width:449px) 
{
	#image1:before {
		content:url(https://quality-kitchen.my/img/about_us/IMG_9912_450.jpg);	
	}
}
@media all and (min-width: 450px) and (max-width: 649px )
{	
	#image1:before {
		content:url(https://quality-kitchen.my/img/about_us/IMG_9912_650.jpg);			
	}
}
@media all and (min-width: 650px) 
{	
	#image1:before {
		content:url(https://quality-kitchen.my/img/about_us/IMG_9912_950.jpg);			
	}
}