How to change font color on Opt in Page (Internet explorer)

Hello – I am brand new to WordPress and have built an opt-in page
at http://dailyfinancialsuccess.com/.
We have changed the color to red for “Get Daily Seeds for Financial Success” and the change takes affect using Firefox, however under Internet explorer it still reflects blue.
How do I get the color to be consistently red no matter which browser used?
I greatly appreciate your assistance.

Warmly – Debbie