.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;
}