.section-mem .contain{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-gap: 2rem;
    padding: 4rem;
    margin: auto;
    justify-content: center;
    align-items: center;
    max-width: 1000px;
}

@media screen and (max-width: 768px){
    .section-mem .contain{
        grid-template-columns: 1fr;
    }

    .section-a .contain h2{
        font-size: 3rem;
    }

}