.txt1 {
    animation: left_to_right 2s ease-in-out forwards;
}
.txt2 {
    animation: left_to_right 1.5s ease-in-out forwards;
}

@keyframes left_to_right {
    0% {
        transform: translateX(0);
        opacity: 0;
    }
    50% {
        transform: translateX(4%);
        opacity: 1;
    }
    100% {
        transform: translateX(4%);
        opacity: 1;
    }
}