Link Hover Colour in accordion drop down

Site URL: https://fifty-fifth.com/home-1

Hello! I'm trying to change the hover colour to the links inside my accordion drop down on this page (https://fifty-fifth.com/home-1). Anyone have any idea how to implement this using CSS or HTML within the markdown? 

I'm using a custom code box for the accordion and a markdown above it that contains all of the text HTML. 

Thanks! 

.sqs-block.markdown-block.sqs-block-markdown a:hover {
    color: red;
}