* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 2rem;
}

form {
  header {
    margin: 0 0 2rem 0;
    div {
      font-size: 90%;
      color: #999;
    }
    h2 {
      margin: 0 0 0.5rem 0;
    }
  }
  > div {
    clear: both;
    overflow: hidden;
    padding: 1px;
    margin: 0 0 10px 0;
    > fieldset > div > div {
      margin: 0 0 5px 0;
    }
  }
}

form > div form > div > label,
legend {
  width: 25%;
  float: left;
  padding-right: 10px;
}
form > div > div,
form > div > fieldset > div {
  width: 75%;
  float: right;
}
form > div > fieldset label {
  font-size: 90%;
}
fieldset {
  border: 0;
  padding: 0;
}

input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"],
textarea {
  width: 100%;
  border-top: 1px solid #ccc;
  border-left: 1px solid #ccc;
  border-right: 1px solid #eee;
  border-bottom: 1px solid #eee;
}
input[type="text"],
input[type="email"],
input[type="url"],
input[type="password"] {
  width: 50%;
}
input[type="text"]:focus,
input[type="email"]:focus,
input[type="url"]:focus,
input[type="password"]:focus,
textarea:focus {
  outline: 0;
  border-color: #4697e4;
}

@media (max-width: 600px) {
  form > div {
    margin: 0 0 15px 0;
  }
  form > div > label,
  legend {
    width: 100%;
    float: none;
    margin: 0 0 5px 0;
  }
  form > div > div,
  form > div > fieldset > div {
    width: 100%;
    float: none;
  }
  input[type="text"],
  input[type="email"],
  input[type="url"],
  input[type="password"],
  textarea,
  select {
    width: 100%;
  }
}
@media (min-width: 1200px) {
  form > div > label,
  legend {
    text-align: right;
  }
}