shreinmedia,
Thanks for getting in touch! I’m seeing your styles getting included in the page source (screenshot), but it looks like your CSS selectors aren’t specific enough. Try something like this:
ul.tribe-events-sub-nav li a {
text-decoration: none;
list-style-image: none;
color: #666666;
font-size: 30px;
}
Take a look at this article, which describes the ‘Cascading’ effect of CSS and which style rules are deemed most important by the browser. You can also use the ‘!important’ declaration to make sure that the browser always uses that style.
Hopefully that helps to point you in the right direction, but let me know if you have further questions. Thanks! 🙂
-Casey-