BEM — is a methodology that helps you to create reusable components and code sharing in front‑end development

#opinions_box h1 {
    margin: 0 0 8px 0;
    text-align: center;
}

#opinions_box {
    p.more_pp {
        a {
            text-decoration: underline;
        }
    }

    input[type="text"] {
        border: 1px solid #ccc!important;
    }
}

.opinions_box {
    margin: 0 0 8px 0;
    text-align: center;

    &__view-more {
        text-decoration: underline;
    }

    &__text-input {
        border: 1px solid #ccc;
    }

    &--is-inactive {
        color: gray;
    }
}