body {
font-family: Arial, Helvetica, sans-serif;
margin:auto;
margin:80px;
width: 800px;
margin: 0 auto;
}

textarea {
width: 100%;
outline: none;
font-family: Arial, Helvetica, sans-serif;
resize: none;
font-size: 2vw;
}

button {
font-family: Arial, Helvetica, sans-serif;
font-size: 2vw;
}

h1 {
  font-size: 6vw;
}
h2 {
  font-size: 3.0vh;
}
p {
  font-size: 2vw;
}
input {
   font-size: 2vmin;
}