font-size rem DEMO

CSS

#rem{			font-size: 1rem;	}
#rem li{		font-size: 1.5rem;	}
#rem li strong{	font-size: 1.5rem;	}

#em{			font-size: 1em;		}
#em li{			font-size: 1.5em;	}
#em li strong{	font-size: 1.5em;	}

HTML

	

		
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Aliquid, laboriosam,
		

			
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Tenetur, obcaecati, enim, provident
		
	
	

		
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Aliquid, laboriosam,
		

			
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Repellat, dolorum, molestiae veritatis

			Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ipsa, temporibus, illum suscipit
		
	

font-size rem指定

font-size em指定