body {
  margin-top: 0px;
  margin-bottom: 0px;
}
a {
  text-decoration: none;
}
a:hover { color: yellow; 
  background-color: orange;
}
a:visited {
 color: purple;
}
h4 {
  color: blue;
  background-color: lightskyblue;
}
h5 {
  color: blue;
  background-color: lightskyblue;
}
table {
  border-style: solid;
  border-color: orange;
  border-width: 2px;
  border-collapse: collapse;
  width:650px;
}
td {
  border-color: orange;
  border-style: solid;
  border-width: 2px;
  text-align: center;
}
tr {
  border-color: orange;
  border-style: solid;
  border-width: 2px;
  text-align: center;
}