Deleted Quick CSS Code

I was trying to remove replies from my blog and ended up messing with my quick css code and believe I accidentally deleted something that was there, and now cannot edit any of my pages. I believe I deleted something in the footer section? help!

Here is the code that I have, copied and pasted:

.main_menu ul:first-child>li>a {

font-size: 20px;

}

.page-id-2945 .main_color .av_promobox{

background: #008080;

}

.team-img-container { float: left; margin-right: 20px;}

display: none;

}