BODY           {color: black; background: #eeeeee}
DIV.text       {max-width: 36em; text-align: left;
                margin-left: auto; margin-right: auto}
DIV.display    {max-width: 50em; text-align: center;
                margin-left: auto; margin-right: auto;
                margin-top: 3ex; margin-bottom: 3ex}
DIV.display2   {max-width: 50em; text-align: center;
                margin-left: auto; margin-right: auto;
                margin-top: 10ex; margin-bottom: 10ex}
IMG.spaced     {margin: 25px}
H1             {font-size: 144%; font-weight: bold;
                font-family: Helvetica, Arial, sans-serif;
                text-align: center; margin-top: 5ex}
H2             {font-size: 120%; font-weight: bold;
                font-family: Helvetica, Arial, sans-serif;
                margin-top: 5ex}
H3, H4, H5, H6 {font-size: 100%; font-weight: bold;
                font-family: Helvetica, Arial, sans-serif;
                margin-top: 3ex}
SPAN.bigbold   {font-size: 144%; font-weight: bold;
                font-family: Helvetica, Arial, sans-serif}