Question

How to add a background color for all items <h1>?

Cosmo · Accepted Answer

The most simple way is to use type selector h1.

Cosmo · Accepted Answer

h1 {background-color: #FFFFFF;}

Cosmo · Accepted Answer

h1 {background-color: #FFF;}

Cosmo · Accepted Answer

h1 {background-color: white;}

Cosmo · Answer

all.h1 {background-color:#FFFFFF;}

Cosmo · Answer

h1.all {background-color:#FFFFFF;}

Cosmo · Answer

h1 * {background-color:#FFFFFF;}

Cosmo · Answer

$$("h1").each(function(h1) { h1.style['background-color']="#FFFFFF"; });