Let's say there are 2 div the block with such classes as .counter_numbers I. text_info
<div class="text_info">help Text number of countries in the world.</div>
The point is that if the numbers (generated by the user) in the block .counter_numbers more than 10, then you need to hide the unit .text_info. And if less than 10, then do nothing. Prompt as such to implement.