change to bold

I have not installed this theme because the stylesheets are, in my opinion, not very “tinker-friendly” (36 style sheets?!). However, I believe the item you are looking for is in one of the 36 style sheets in wp-content/themes/customizr/inc/assets/css. You’ll need to find a line like the following:

font-weight: specified;

(where “specified” could be one of normal, italic, or bold) and change it to bold.

With 36 style sheets it’s no wonder you’re having difficulty changing the theme.

Save this code snippet into Custom CSS:

.navbar .nav > li > a, .navbar .nav > li > a:first-letter,
.navbar .nav > li.current-menu-item > a,
.navbar .nav > li.current-menu-ancestor > a {
display:        inline;
font-weight:bold!important;
}

not working… thanks for trying

Try:

.navbar .nav li.free_download.btn a {
    color: #FFF;
    text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.31);
    padding: 3px 9px;
    font-weight: bold;
}
.navbar .nav > li > a {
    font-weight: bold !important;
}

If that works, add the other selectors

.navbar .nav > li > a:first-letter,
.navbar .nav > li.current-menu-item > a,
.navbar .nav > li.current-menu-ancestor > a

works but it affects all the text on my site

fixed