* {
    margin: 0px;
    padding: 0px;
}

.cabecera {
    background-color: orange;
    height: 24px;
    font-size: 24px;
    margin: 10px 10px 0px 10px;
    padding: 10px;
    font-weight: bold;
    display: flex;
    justify-content: center;
    align-items: center;
}

.cuerpo {
    height: 150px;
    display: flex;
    justify-content: space-between
}

.sidebar {
    background-color: gray;
    margin: 0px 10px 0px 10px;
    color: white;
    padding: 24px;
    display: flex;
    justify-content: center;
    flex: 1 1 auto;
}

.centro {
    padding: 24px;
    display: flex;
    justify-content: center;
    flex: 2 2 auto;
}