body{
    display: flex;
    text-align: center;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    font-family: "Mozilla Headline", sans-serif;
}

.Calcu{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    border: 0.3rem;
    border-style: solid;
    width: 300px;
    height: 500px;
    border-radius: 5%;
    box-shadow: 10px 10px 20px rgba(0,0,0,0.3);

}

.Kolom{
    padding: 3px;
    font-size: 50px;
    text-align: center;
}


.Tombol{
    display: grid;
    grid-template-columns:repeat(4,1fr) ;
    padding: 10px;
    
}

.Tombol button {
    width: 70px;       /* lebar tombol */
    height: 70px;      /* tinggi tombol */
    font-size: 1.5rem; /* ukuran angka/tulisan di tombol */
    margin: 3px;       /* jarak antar tombol */
    border-radius: 8px; /* biar sudutnya agak bulat */
    border: 1px solid black;
    cursor: pointer;
    padding: 10px;
}

.Tombol button:hover{
    background-color: orange;
    color: white;
}