How to add bold

[Il Domandatore]

This is the SVG file to edit. I added via the Chrome developer tool, the font-weight and !Important attribute. I can not add the bold, even in theme with custom CSS.

 

.switcher .selected a:after {

1. height: 48px;
2. display: inline-block;
3. position: absolute;
4. right: 10px;
5. width: 15px;
6. background-position: 50%;
7. background-size: 14px;
8. background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='16'…a9 9 0 0 0 13.1 0l133-133a9 9 0 0 0 0-13z' style='fill:%23ffffff'/></svg>");
9. background-repeat: no-repeat;
10. content: ""!important;
11. transition: all .2s;
12. font-weight: 900 !important;

}

 

Alternatively, I have 2 identical icons with Awesome Font. There I managed to put the Bold, the Hover effect. But I don't know how to take out the SVG, putting the Awesome Font in the correct position.

SVG was created by the Gtranslate plugin and is on the language bar.