[NSFW] Cantidad de Entradas por línea

Hi there,

Try this CSS:

@media(max-width:768px){
    header.page-header{
        flex: 0 0 100%;
    }
    body.archive article.post{
        flex: 0 0 50%;
    }

    body.archive article.post > .inside-article{
        padding: 30px;
    }

    body.archive main#main {
        display: flex;
        flex-wrap: wrap;
    }
}

@media(min-width:769px){
    header.page-header{
        flex: 0 0 100%;
    }
    body.archive article.post{
        flex: 0 0 25%;
    }

    body.archive article.post > .inside-article{
        padding: 30px;
    }

    body.archive main#main {
        display: flex;
        flex-wrap: wrap;
    }
}

Note: The alignment won’t be perfect because the title length and the images you’ve used are not uniform.