body {

  font:                small/1.6em Verdana, Helvetica, Arial, sans-serif;

}

h1{

  color:               #007e7e;

}

h1 {

  font-size:           150%;

}

#violet {

  line-height:         1.9em;

  font-style:          italic;

  font-family:         Georgia, "Times New Roman", Times, serif;

  color:               #444444;

  border:              1px dashed white;

  background-color:    #a7cece;

  padding:             25px;

  padding-left:        80px;

  margin:              30px;

  margin-right:        250px;

  background-image:    url(images/background.gif);

  background-repeat:   no-repeat;

  background-position: top left;

}

img.center { 

    display: block; 

    margin-left: auto; 

    margin-right: auto;

}

table {

margin-left: 20px;

margin-right: 20px;

border: thin solid black;

caption-side: bottom;

border-collapse: collapse;

}

td, th {

border: thin dotted gray;

padding: 5px;

}

.nav {

margin-right: 250;

position: absolute;

top: 275px;

left: 0;

background-color: yellow;

color: white;

}

.nav #a {

width: 160px;

border-bottom: 1px, solid black;

padding: 3px;

display: block;

}

.nav #a: hover{

background-color: blue;

border-bottom: 1px, solid gray;

color: yellow;

}