CSS body element width not working

Question

HTML:

    
Some content

CSS:

body {
    margin: 0 auto;
    width: 470px;
    back         


        

Answer 1

Into browser, the represent the main container and width is referred to browser. If you want center all content into body can simply try something so:

body {
  margin: 0px auto;
  text-align: center;
  background-color: cyan;
}


  
 Content 

I prefer include the content into

.