Website doesn't play well with IE(Internet Explorer)

First I’d like to thank everyone in advance for your help. You’re Awesome!

I have been tinkering with my website for nearly a week now and can’t understand why it seems to look and work great on Safari, Firefox and Google Chrome but suffers to run properly on IE. The homepage(which is my slider) has the text barely visible and misses the colorful borders, the formatting of my pages are way off and my slider doesn’t seem to adjust to different screen sizes so the text overlaps the pictures.

Has anyone experienced this issue? If so, what do I do to fix it? I’m not very familiar with CSS since this is my first site and I’m self taught. This is my baby and I want it to look and function great. I tried finding similar topics on here but I can’t make sense of the answers.

Oh yeah, my website is mcaproservice.com

I’m really struggling and I hate to bother other people for help but Ive run out of options.