Testimonial styles not loading

I observed that when my site open and navigate through the testimonial page, it doesn't load the styles and the page looks bland and uninteresting but when I refresh that page it then loads it. I used testimonialshowcase plugin and here is the screenshot of how the style is when the page refreshed: http://awesomescreenshot.com/0bd4qsqq14
Hence, how can you aid me to get the style on first load when the site is visited and navigated?
url: http://projectsmileng.com