* {
    font-family:Arial, Helvetica, sans-serif;
    background-color: #f6f6f6;
    color: #333;
}
body{
    max-width: 500px;
    margin: 0 auto;
}
h1, h3, p{
    text-align: center;
}
p img {
    width: 80%;
    margin: 0 0 30px 0;
}
.form-group {
    display: flex;
}
.form-group input, .form-group textarea {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 10px;
    background-color: #fff;
}
button {
    padding: 10px;
    margin: 10px 0;
    width: 100%;
    border: 1px solid green;
    color: green;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: 10px;
    transition: all 0.2s;
}
button:hover {
    background-color: green;
    color: #fff;
    transition: all 0.2s;
}