body { margin: -0.5em 1em 0em 50px; color: black; background: white; }
h1 { text-align: center; }
h2, h3, h4, h5, h6 { text-align: left}
h2, h3 { background: transparent }
h3 {  margin-left: 1em; }
h4 {  margin-left: 1em; }
h5 {  margin-left: 2em; }
h6 {  margin-left: 2em; }
pre { margin-left: 2em }
td {  color: black; }

pre.yellowbox { border: solid; border-width: thin; width: 85%;  padding: 0.5em; }