Elements.style

Hello,
I need help trying to find:
element.style {
display: none;
float: left;
margin-right: -100%;
width: 100%;
}
because i need to change it to margin-right 100%
It will probably be located under wp-content/themes/Valor but i am not quite sure, i have searched many of the files but i simply cannot find it! Please help,
Thanks
ITechMatrix
P.S my website is itechmatrix.com if you need it.
P.P.S I am using WordPress

Pretty much every major browser has a way to inspect HTML (eg, Chome's console, Firebug, and IE's developer tools), and I'm pretty sure every one of them will show you the CSS styles applied as well as where the definitions are. So find an element.style and inspect it.