body {
    font-family: Arial, sans-serif;
    text-align: center;
    background-color: #f0f0f0;
}

.calculator {
    background-color: #ffffff;
    border: 1px solid #ccc;
    border-radius: 10px;
    padding: 20px;
    margin: 20px auto;
    max-width: 600px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
}

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

input {
    width: 100%;
    padding: 5px;
    margin-bottom: 10px;
    border: 1px solid #ccc;
    border-radius: 3px;
}

.blue-button {
    background-color: #0074cc;
    color: #fff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    margin-right: 10px;
}

.green-button {
    background-color: #4caf50;
    color: #fff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
}

.result {
    color: #00bf00;
	  font-size:25px;
  	font-weight:600;
    background-color: yellow;
    padding: 10px;
    margin-top: 10px;
}