table {
  font-family: arial, sans-serif;
  border-collapse: collapse;
  width: 100%;
}

td, th {
  border: 1px solid #dddddd;
  text-align: left;
  padding: 8px;
}

.red{
 color:darkred; 
}

rowspan{
  width: 0;
  word-wrap: break-word;
}

.blue{
  background-color:blue;
}

.grey{
  background-color:grey;
}  
  
.darkgreen{
  background-color: darkgreen;
}

.lightgreen{
  background-color:lightgreen;
}

.head{
  text-align: center;
}