html, body {
  width: 100%;
  height: 100%;
  color: #444;
  background: #f0f0f0;
  font: 9pt Arial,Helvetica,sans-serif;
}
#container {
  position: fixed;
  width: 340px;
  height: 470px;
  top: 40%;
  left: 50%;
  margin-top: -170px;
  margin-left: -170px;
  background: #fff;
  border-radius: 3px;
  border: 1px solid #ccc;
  box-shadow: 0 1px 2px rgba(0, 0, 0, .1);
}
.info {
  font-size: 14px;
  padding-left: 20px;
  padding-top: 20px;
  line-height: 23px;
  text-align: center;
}
.note {
  font-size: 11.5px;
  color: #606060;
  line-height: 14px;
  float: left;
  margin: 20px;
  text-align: justify;
}
form {
  margin: 0 auto;
  margin-top: 20px;
}
label {
  color: #555;
  display: inline-block;
  margin-left: 18px;
  padding-top: 10px;
  font-size: 14px;
}
input {
  font-size: 12px;
  outline: none;
}
input[type=text], input[type=password] {
  color: #777;
  padding-left: 10px;
  margin: 10px;
  margin-top: 12px;
  margin-left: 18px;
  width: 300px;
  height: 35px;
}
input[type=text]:focus, input[type=password]:focus {
  border: 1px solid #a8c9e4;
  box-shadow: inset 0 1.5px 3px rgba(190, 190, 190, .4), 0 0 0 5px #e6f2f9;
}
input[type=submit] {
  float: right;
  margin-right: 20px;
  margin-top: 20px;
  width: 80px;
  height: 30px;
  font-size: 14px;
  width: 80px;
  height: 30px;
  left: 50%;
}
/* Responsives Grundlayout */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}

/* Das Container-Layout für große Bildschirme */
#container {
  width: 340px;
  min-height: 470px;
  margin: 5vh auto 0 auto;
  position: relative;
  top: 0;
  left: 0;
  transform: none;
  box-sizing: border-box;
}

/* Media Query für schmale Bildschirme */
@media (max-width: 450px) {
  #container {
    width: 98vw;
    min-width: 0;
    margin: 2vh auto;
    border-radius: 0;
    height: auto;
    padding: 10px 0;
  }
  input[type="text"], input[type="password"] {
    width: 88vw;
    min-width: 0;
    max-width: 96vw;
    margin-left: 2vw;
  }
  .info, .note {
    padding-left: 5px;
    margin: 10px 5px;
    font-size: 13px;
  }
  input[type="submit"] {
    width: 60vw;
    margin-right: 0;
    margin-left: 2vw;
    display: block;
    float: none;
  }
  label {
    margin-left: 2vw;
    font-size: 13.5px;
  }
}

/* Optionale Anpassung: Inputs & Buttons allgemein responsiv */
input, button {
  box-sizing: border-box;
}