:root{
    --fuenteprincipal: Arial ;
}

html{
    box-sizing: border-box;
    font-size: 62.5%; /** Reset para REMS - 62.5% = 10px de 16px **/
}

*, *:before, *:after{
    box-sizing: inherit;
}

body{
    background-color: black;
    line-height: 2;
    font-size: 2rem;
    color: white;
}

img{
    max-width: 100%;
    padding: 30px;
}


.contenedor-header{
    width: 90%;
    margin: 0 auto;
    text-align: center;
}

.contenedor-texto{
    width: 90%;
    margin: 0 auto;
}
.contenedor-texto p{
    font-family: var(--fuenteprincipal);
    text-align: justify;
    margin: 20px;
    font-size: 1.2rem;
    line-height: 1.5;
    text-indent: 14%;
}


@media screen and ( min-width:768px){
    .contenedor-texto p{
        font-size: 2rem;
    }
}


.contenedor-logos{
    width: 100%;
    margin: 0 auto;
}
@media (min-width: 768px) {
    .contenedor-logos{
        display: flex;
        justify-content: space-between;
        flex-wrap: wrap;
        
    }
}
.logo{
    text-align: center;
}
@media (min-width: 768px) {
    .logo{
        flex: 0 0 calc(33.33% - 1rem);
    }
}


.contenedor-texto-autor{
    width: 90%;
    margin: 0 auto;
}

.contenedor-texto-autor p{
    font-family: var(--fuenteprincipal);
    text-align: center;
    margin: 20px;
    font-size: 2.2rem;
    line-height: 1.5;
}

@media screen and ( min-width:768px){
    .contenedor-texto p{
        font-size: 2rem;
    }
}