Add drop shadow on home page parallax

Hello, I love the theme. Only thing is I was wondering how to add drop shadow to the text in the front page on the parallax slides as to increase visibility. The website is

Hello there,

I hope you are doing well today.

You can use the following CSS code to add a text shadow by going to Appearance > Customize > Additional CSS and pasting it there.

/*Text Shadow*/
.text-center h1 {
    text-shadow: 4px 4px black;

Best Regards,