body{
    margin: 0;
    padding: 0;
}

.content-body {
    background-color: #6dc9ff;
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.content-calculator{
    width: 400px;
    height: 350px;
    background-color: #aaaaaa;
    border-radius: 10px;
    box-shadow: 2px 10px 9px 6px rgba(0, 0, 0, 0.3);
    padding: 20px 15px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-template-rows: 80px;
    grid-gap: 20px;
}

.screen{
    background-color: #414141;
    border-radius: 10px;
    color: #57e8ff;
    padding: 15px;
    grid-column: span 4; /*Ocupa las 4 columnas o tambien sin span y 1/5 y da el mismo resultado*/
}

.screen input {
    background: none;
    border: none;
    padding: 0;
    font-size: 50px;
    width: 100%;
    outline: inherit;
}

.btn-cal{
    background-color: #ffff;
}

.btn-cal-radius{
    border-radius: 15px;
}

.btn-cal input{
    border: 0;
    width: 100%;
    height: 100%;
    border-radius: 10px;
    border-radius: none;
    font-size: 25px;
    color: #7e7e7e;
}

.btn-cal .limpiar{
    background-color: #fffb88;
}

.btn-cal .igual{
    background-color: #98f8ab;
}

.btn-cal :hover{
    background-color: #ffb497;
    color: white;
    transition-duration: 0.5s;
}

.btn-igual :hover{
    background-color: #66f789;
    color: white;
    transition-duration: 0.5s;
}

.btn-cal .limpiar :hover{
    background-color: #fffb59;
    color: black;
    transition-duration: 0.5s;
}
.btn-cal-radius{
    border-radius: 15px;
}