#abt.active {
    .tab-inner div p:nth-child(1) {
        animation: small-tab-in 2s;
    }
    .tab-inner div p:nth-child(2) {
        animation: small-tab-in 2.25s;
    }
    .tab-inner div p:nth-child(3) {
        animation: small-tab-in 2.5s;
    }
    .tab-inner div p:nth-child(4) {
        animation: small-tab-in 2.75s;
    }
}