* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #333;
}

main {
    padding: 50px;
    text-align: center;
    padding-bottom: 0px;
}

.about-us {
    max-width: 1211px;
    margin: 0 auto;
    text-align: center;
}

.about-us h1 {
    font-size: 36px;
    margin-bottom: 10px;
}

.about-us p {
    margin-bottom: 20px;
}

footer {
    background-color: #333;
    color: #fff;
    padding: 10px;
    text-align: center;
    position: fixed;
    bottom: 0;
    width: 100%;
}

a {
    color: #2997FF;
    text-decoration: none;
}

a:hover {
    color: lightblue;
    text-decoration: underline;
}

::selection {
    color: black;
    background-color: #39FF14;
}

.container {
    max-width: 100%;
    padding: 20px;
    padding-top: 10px;
}

h4 {
    text-align: center;
    color: #333;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

table,
th,
td {
    border: 1px solid #ddd;
}

th,
td {
    padding: 10px;
    text-align: center;
}

th {
    background-color: #333;
    color: #f5f5f5;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

@media (max-width: 768px) {
    main {
        padding: 0px;
    }

    .about-us {
        padding: 15px;
    }

    .about-us h1 {
        font-size: 29px;
    }

    .about-us p {
        font-size: 12px;
        margin-bottom: 10px;
    }

    footer {
        padding: 5px;
    }

    .container {
        padding: 10px;
        padding-top: 0px;
    }

    h4 {
        font-size: 13px;
    }

    table {
        margin-top: 10px;
    }

    th,
    td {
        padding: 5px;
        font-size: 10px;
    }
}