* {
    background: #000;
    font-family: Ysabeau infant;
}
@font-face {
    font-family: Ysabeau infant;
    src: url(./YsabeauInfant-Light.ttf);
}
.calculator {
    width: 270px;
    margin: 30px auto;  
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
}
.calc {
    width: 270px;
    margin: 30px auto;  
    color: #ccc;
    padding: 15px;
    text-align: center;
    border: 1px solid #ccc;
    border-radius: 5px;
}

#display {
    width: 100%;
    outline: none;
    margin-bottom: 10px;
    background: #ddd;
    font-size: 20px;
}

.buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 5px;
}

button {
    padding: 10px;
    font-size: 18px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    background-color: #ddd;
}

button:hover {
    background-color: #ccc;
}