h1 {font-family:"Georgia","Arial"; font-weight:700; color:green; font-size:120px; }
h2 {font-family:"Georgia","Arial"; font-weight:500; color:green; font-size:40px; }
p {font-family:"Georgia"; color:#008000}
table.structures {border-style:double; border-width:5; border-color:navy;}
td {height:100px; width:10%; padding:5px; text-align:center; vertical-align:top;}
img {border-style:solid; border-width:"2"; border-color:"green"; }