How to add big arrows to slideshow dawn theme

[Vlk1]

Hey, 

I am looking for an advice. I was trying to browse the net for 2 hours but I still dont have solution. Do anyone know how to add big arrows to slideshow? Thank you very much!!!

[eComInsider]

Go to CSS file editor, 

 Try changing these codes:

.slider-nav .prev-arrow,
.slider-nav .next-arrow {
  font-size: 48px;
  color: #333;
}

[Vlk1]

Hello, unfortunately does not work for me.