input[type="button"] { 
    height: 60px;
    width: 60px;
    color: white; 
    font-size: 20px;
    font-weight: bold; 
    border: none; 
    box-shadow: -8px -8px 15px rgba(255, 255, 255, 0.1), 5px 5px 15px rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    background: transparent
} 

body{
    width: 100%;
    height: 100vh;
    border: none;
    background: #e3f9ff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.box {
    border: 2px solid black; 
    height: 60px;
    display: flex;
    background: white; 
}

#display{
    font-size: 20px; 
    font-weight: bold;
    padding: 10px;
}


input[type="text"] { 
    padding: 20px 30px; 
    font-size: 24px; 
    font-weight: bold; 
    border: none; 
    border-radius: 5px; 
    border: 2px solid black; 
} 

table { 
    border: 1px solid black; 
    background-color: black;
}