* {
    background-color:aliceblue;
    font-family: Helvetica, Arial, sans-serif;
    
}

h1 {
    text-align: center;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-size: 50px;
}

h2 {
    text-align: center;
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

table {
    margin: 0 auto;
    width: 100%;
    max-width: 900px;
}
th, td {
    padding: 10px 25px 10px 10px;
}

th {
    text-align: left;
    color: aliceblue;
}

table.html-tags thead th{
    background-color: plum;
}

table.entities thead th {
    background-color: #5C9EAD;
}

table.attributes thead th {
    background-color: #642CA9;
}

.code {
    font-family: "Lucida Console", Courier, monospace;
    background-color: rgb(229, 252, 225);
}

col.subject {
    width: 150px;
}

col.example {
    width: 300px;
}