:root {
    --body-bg : #E3F2FD;
    --main-bg : #F5F5DC;

}

body {
    background-color: var(--body-bg);
    font-family: Arial, Helvetica, sans-serif;
    color: #333;
}

main {
    background-color: var(--main-bg);
    border: 1px solid black;
    margin: 0 auto;
    padding: 20;
    width: 80%;
}

ul {
    list-style-type: none;
    padding: 0;
}

button#nxtpg {
    background-color: #4CAF50;
    color: white;
    padding: 15px 32px;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
}

#nxtpg:hover {
    background-color: white;
    color: #4CAF50;
    cursor: pointer;
}