.default-class {
    background-color: lightblue;
    padding: 20px;
    color: black;
    width: 200px;
}

.new-class {
    background-color: lightgreen;
    padding: 20px;
    color: white;
}

.equation-display {
    font-size: 0.85em;
    color: #888;
    margin-bottom: 5px;
}