Default values for Box Model Properties
body - margin: 8px;
h1 - margin-top: 0.67em;
margin-bottom: 0.67em;
h2 - margin-top: 0.83em;
margin-bottom: 0.83em;
h3 - margin-top: 1em;
margin-bottom: 1em;
h4 - margin-top: 1.33em;
margin-bottom: 1.33em;
h5 - margin-top: 1.67em;
margin-bottom: 1.67em;
h6 - margin-top: 2.33em;
margin-bottom: 2.33em;
p - margin-top: 1em;
margin-bottom: 1em;
ol - margin-top: 1em;
margin-bottom: 1em;
padding-left: 40px;
ul - margin-top: 1em;
margin-bottom: 1em;
padding-left: 40px;