/* Add this to your CSS or replace the body styling if it exists */
body {
    height: 100vh;
    margin: 0;
    display: flex;
    justify-content: center; /* Horizontal center */
    align-items: center;     /* Vertical center */
    background-color: #f4f4f4; /* Optional background */
}

/* Your existing calculator styles (you can keep as is or tweak) */
.calculator {
    border: 1px solid black;
    height: 18rem;
    width: 15rem;
    border-radius: 8px;
    text-align: center;
    background-color: white;
    box-shadow: 0 0 10px rgba(0,0,0,0.2); /* Optional shadow */
}

/* rest of your styles remain the same... */


#input::placeholder {
   font-size: 20px;
   color: black;
}

#input {
    border: none;
    margin-left: 15px;
    margin-top: 20px;
    height: 20px;
    width: 200px;
    text-align: right;
}

.btns button{
    border-radius: 40px;
    font-size: 16px;
    height: 38px;
    width: 45px;
    margin-top: 5px;
    color: black;
    background-color: rgb(239, 235, 235);
    border: none;
    margin-left: 10px;
    font-weight: 500;
}

#eql {
    background-color: orange;
    color: white;
}