h1, h2, h3, h4 { 
        font-family: Helvetica; 
        font-weight: bold; 
        text-align: left;  
        margin-bottom: 2px; 
        }
h1,{color: steelblue; margin-top: 8px; margin-bottom: 8px; 
         text-align: center }
h2,{color: crimson; margin-top: 8px; }
h3 { color: crimson; margin-top: 6px; text-indent: 8px; }
h4 { margin-bottom: 0px; }

ul,p { margin-top: 4px; margin-bottom: 4px; }

th { vertical-align: top; }
td { vertical-align: top; }

body { 
       font-family: Times;
       margin-left: 5%;
       margin-right: 5%;
     }

a:link {color: steelblue;}
a:active {color: crimson;}
a:visited {color: green;}

.yellow { background-color: palegoldenrod; }
.blue { background-color: lightsteelblue; }
.grey  { background-color: lightgrey; }