estilos.css

*{
    margin: 0;
    padding: 0;
}
html{
    font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}
.container{
    height: 100vh;
    width: 100vw;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
}
.calculadora{
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background-color: #2A9D8F;
    border-radius: 10px;
    width: 300px;
    height: 400px;
}
button{
    background-color: #ffffff;
    color: #264653;
    font-weight: bold;
    border: none;
    border-bottom: 5px solid #264653;
    border-radius: 10px;
    height: 3rem;
    width: 3rem;
}
button:active{
    border-bottom: 4px solid #264653;
    transform: translatey(5%);
}
.total{
    background-color: #E9C46A;
    width: 6rem;
}
.reset{
    color: white;
    background-color: #E76F51;
    justify-self: start;
    height: 2rem;
}
.pantalla{
    width: 200px;
    height: 40px;
    border-radius: 10px;
    font-weight: 2rem;
}

.operador{
    background-color: #d5f3ff;
}