body {

    font-family: Arial;
    background: #f5f5f5;

}

.container {

    width: 400px;

    margin: 100px auto;

    background: white;

    padding: 30px;

    border-radius: 10px;

}

input,
textarea {

    width: 100%;

    padding: 10px;

    margin-top: 10px;

}

button {

    margin-top: 15px;

    padding: 10px 20px;

    cursor: pointer;

}