style.css

* {
    font-family: Helvetica;
    box-sizing: border-box;
    }

body {
    margin: 1rem;
    background-color: #e9e5dd;
}

form {
    width: 100%;
}

div {
    display: flex;
    flex-direction: column;
    max-width: 500px;
    margin: auto;
}

p#data {
    text-align: center;
    font-size: .8rem;
    font-weight: 700;
}

h2 {
    text-align: center;
}

h4 {
  margin-bottom: .5rem;
}

h5{
    color: #555555;
    font-weight: 100;
    font-size: .8rem;
    text-align: center;
}

input {
    border-radius: .5rem;
    border: 1px solid #555555;
    padding: .5rem;
}

input#submit {
    border: black solid 1px;
    padding: 5px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 18px;
    margin: 2px 2px;
    transition-duration: 0.4s;
    cursor: pointer;
    background-color: white;
    color: black;
}

input#submit:hover {
    background-color: #555555;
    color: white;
    border: 1px solid #555555;
}

textarea {
    border: 1px solid black;
    border-radius: .5rem;
    padding: .5rem;
}