h1 {
 text-align: center;
 background-color: green;
 color: white;
 font-family: sans-serif;
}

table {
 background-color: blue;
}

td {
 background-color: lightblue;
}

th {
 background-color: blue; 
 color: white;  
 font-weight: bolder;
 font-family: sans-serif;
}

.solvername {
 font-weight: bolder;
 font-family: sans-serif;
}