Slider showing as list at startup

Hi,

Logo carousel is working fine but the slider showing as list at loading few seconds alter css applied and it will look normal.

I tried to add “jquery.bxslider.css”, “custom-styles.css” and “jquery.bxslider.js” to the top of the header but nothings changed. Also, I tried to change “wp_footer” to “wp_head” but this didn’t work too.

How can I make it appear as slider instead of list?

Please check this this url: https://www.5bdedektor.com/kurumsal/hakkimizda/

Thanks.