*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body{
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    
}
.nums{
    display: grid;
    border: 1px solid black;
    width: 400px;
    height: 650px;
    padding: 5px;
}
td{
    width: 100px;
    height: 100px;
    padding: 2px;
}
input{
    width: 100%;
    height: 100px;
    border: 5px solid black;
}
input::placeholder{
    text-align: center;
    font-size: 30px;
    
}
button{
    width: 100%;
    height: 100%;
    border-radius: 15px;
    padding: 2px;
    outline: none;
    font-size: 25px;
    font-weight: bold;
    box-shadow: 0 0 3px black;
    
}