body {
  width: 400px;
  max-width: 750px;
  min-width: 480px;
  margin-top: 10px;
}
.container {
  margin: 0 auto;
  width: 400px;
  height: 550px;
  background-color: #1a19194b;
  box-sizing: border-box;
  text-align: center;
}

#credit{
  text-align: left;
  padding-left: 35px;
}
#height,
#weight {
  width: 150px;
  height: 25px;
  margin-top: 30px;
  
}

#weight-guide {
  text-align:left;
  padding-left: 45px;

}

#results {
  font-size: 35px;
  margin-left: 90px;
  margin-top: 20px;
  color: rgb(0, 0, 0);
}

button {
  width: 150px;
  height: 35px;
  margin-left: 90px;
  margin-top: 25px;
  background-color: #fff;
  padding: 1px 30px;
  border-radius: 8px;
  color: #212121;
  text-decoration: none;
  border: 2px solid #212121;

  font-size: 25px;
}

h1 {
  padding-left: 15px;
  padding-top: 25px;
  
}