form {
    display: flex;
    flex-direction: column;
    width: 400px;
    max-width: 90%;
    margin: auto;
}

input[type=text], input[type=tel], input[type=email], textarea {
    padding: 5px;
    border: 1px solid #aaaaaa;
    border-radius: 10px;
    margin-bottom: 10px;
}

label {
    margin-bottom: 5px;
}
textarea {
    min-height: 100px;
}