Change font and color of text in variant box on product page

Site URL: https://www.glimpseguides.com/the-travel-shop/silk-pouches-gold-zipper

Hi I am trying to change the font of the variant drop down menu on product page to match the other styles on my site. I also want to change the the color to grey. 

Add to Design > Custom CSS

div.variant-option * {
    font-family: proxima-nova;
    font-style: normal;
    font-weight: 300;
    font-size: 18px;
    letter-spacing: .02em;
    line-height: 1.6em;
    text-align: left;
}