h1{
    background-color: red;
}

body {
    list-style-type: none;
    margin: 0;
    padding: 0;
    overflow: hidden;
    background-color: rgb(157, 157, 157);
}

table a {
    display: block;
    color: rgb(0, 0, 0);
    text-align: center;
    padding: 14px 16px;
    text-decoration: none;
}

th a:hover {
    background-color: rgb(150, 150, 150);
}
th, td {
    border: 1px solid rgb(0, 0, 0);
    padding: 8px;
    text-align: left;
}

th {
    background-color: rgb(150, 150, 150);
    color: #000000;
}

tr:nth-child(even) {
    background-color: rgb(159, 159, 159);
}

form {
    margin-top: 20px;
}

input, textarea {
    margin-bottom: 10px;
    padding: 8px;
}

input[type="submit"] {
    background-color: #000000;
    color: #ffffff;
    cursor: pointer;
}

input[type="submit"]:hover {
    background-color: #777777;
}

a {
    text-decoration: none;
    color: #3498db;
}

a:hover {
    color: #217dbb;
}