.container {
  max-width: 500px;
  margin: 0 auto;
  padding: 20px;
	background-color: #fff;
	    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0,0,0,.1);
}


.form-group {
  margin-bottom: 10px;
}

label {
  display: block;
  margin-bottom: 5px;
}

input[type="number"] {
  font-size: 16px;
  padding: 10px 20px;
  border-radius: 5px;
  border: 1px solid #ccc;
}


button:hover {
  opacity:0.8;
}

button[type="button"] {
    background-color: #4CAF50;
    color: white;
    border: none;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
}

button[type="reset"] {
    background-color: #f44336;
    color: white;
    border: none;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 4px 2px;
    cursor: pointer;
    border-radius: 5px;
}

output {
  display: block;
  font-size: 18px;
  font-weight: bold;
  margin-top: 10px;
}