JSFiddle - React, Tailwind, and code Playground
HTML
<span id="num0" class="jjj">00000000</span><br>
<span id="num1" class="jjj">11111111</span><br>
<span id="num2" class="jjj">22222222</span><br>
<span id="num3" class="jjj">33333333</span><br>
<span id="num4" class="jjj">44444444</span><br>
<span id="num5" class="jjj">55555555</span><br>
<span id="num6" class="jjj">66666666</span><br>
<span id="num7" class="jjj">77777777</span><br>
<script>
$(document).ready(function()
{
for (var i = 0; i < 8; i++){
$("#num" + i).delay(i * 2000).fadeIn(1000);
}
});
</script>
CSS
.jjj {display: none;}