There’s no need to use any plugin for customizing the css..
Just go to “Appearance”->”Editor” in the menu to the left, pre-selected file will be “styles.css”, and that’s where I put all my modifications in my Sparkling child theme.
Chrome has similar debugging tools like Firefox, but I’m not used to their browser. Finding the correct class to modify is the first step, then it’s just as simple as adding the code with the modifications in the css-file.
If you added the code exactly as provided, there will be no change as I just copied it from the debugger.. To make visible change, set the background color to “crazy-red” or something:
.navbar.navbar-default {
background-color: #FF0000;
font-family: ‘Open Sans’,serif;
margin-bottom: 0;
font-weight: 500;
}
You have to find the desired color code yourself. Trial and error or a color-picking plugin for the broswer. You probably know that the parts of the code is amounts of red, green and blue.