Font across entire site is bold. Can't find out why

My website is http://www.outdoorvancouver.ca

The font on all the posts/ sidebar / pages seems to be bold. If I add a ‘strong’ tag to any section of font, it appears the same as the regular font.

Can someone please give me a few suggestions where to look for errors (my technical knowledge is limited so please be patient with me)

The default css reads as follows:

body {
font-family: Arial, Verdana, sans-serif;
color: #252525;
font-size: 13px;
line-height: 20px;
background: #285366 url(default/bg_website.jpg) no-repeat top center;
}

@font-face {
font-family: ‘LeagueGothic’;
src: url(‘fonts/League_Gothic-webfont.eot’);
src: url(‘fonts/League_Gothic-webfont.eot?#iefix’) format(’embedded-opentype’),
url(‘fonts/League_Gothic-webfont.woff’) format(‘woff’),
url(‘fonts/League_Gothic-webfont.ttf’) format(‘truetype’),
url(‘fonts/League_Gothic-webfont.svg#LeagueGothicRegular’) format(‘svg’);
font-weight: normal;
font-style: normal;

}

Thanks in advance for any help!!