form {
    border: 3px solid #f1f1f1;
    font-family: Arial;
}

/*.container {
    padding: 20px;
    background-color: #f1f1f1;
}*/

input[type=text], input[type=submit] {
    width: 100%;
    padding: 12px;
    margin: 8px 0;
    display: inline-block;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

input[type=checkbox] {
    margin-top: 16px;
}

input[type=submit] {
    background-color: #00B764;
    color: white;
    border: none;
}

    input[type=submit]:hover {
        opacity: 0.8;
    }
textarea {
    width: 100%;
    min-height: 15em;
}