@-ms-viewport{
  width: device-width;
}

@media (min-width: 240px) and (max-width: 499px) {
div.form_container {
  display: block;
  margin: 0 auto;
  margin-bottom: 20px;
  width: 95%;
  padding-top: 10px;
  border-radius: 6px;
  border: 2px solid black;
  text-align: center;
}
div.input {
  display: inline-block;
}
input[type=text], input[type=email]{
  padding: 6px 2px;
  border-radius: 4px;
  font-size: .75em;
}
input[type=text]{
    width: 75px;
}
input[type=email]{
  width: 125px;
}
input[type=submit]{
  border-radius: 4px;
  padding: 6px 10px;
  background-color: #7E0A4B;
  color: white;
  font-size: .75em;
  font-weight: bold;
}
h3 {
  font-family: arial, helvetica, sans-serif;
  font-size: 1.5em;
  text-align: center;
  line-height: .75em;
}

}
@media (min-width: 500px) {
div.form_container {
  display: block;
  margin: auto;
  margin-bottom: 20px;
  padding: 10px;
  width: 95%;
  max-width: 768px;
  border-radius: 6px;
  border: 2px solid black;
  text-align: center;
}
div.input {
  display: inline-block;
}
input[type=text], input[type=email]{
  padding: 6px 10px;
  border-radius: 4px;
  font-size: 1em;
}
input[type=text]{
    width: 125px;
}
input[type=email]{
  width: 150px;
}
input[type=submit]{
  border-radius: 4px;
  padding: 6px 10px;
  background-color: #7E0A4B;
  color: white;
  font-size: 1em;
  font-weight: bold;
}
h3 {
  font-family: arial, helvetica, sans-serif;
  font-size: 1.5em;
  text-align: center;
}
}

form {
    margin: auto;
}