How can I center the logo in header? without removing the Header widget. My logo is left-aligned right now. I want it in the center

If you want to center logo on the DW Focus, please follow the jetpack’s guideline first in the Blog article on how to use Edit CSS here. http://cmspioneer.com/designwall/blog/using-jetpack-custom-css-for-your-wordpress-site/
After that, just add the following code to the Edit Css.

.site-header #branding h1 {
    margin: 0 0 0 377px;
}
 #sidebar-header {
     clear: left;
}

Then open the header.php file in the folder path “wp-content\themes\dw-focus“, and find the line 33.
Replace the following code:

<div id="sidebar-header" class="span9">

With new code:

<div id="sidebar-header" class="span12">

Save it and see if that resolves it for you. Hope this helps !

Thanks but It doesn’t work. I need to center the logo in the space for the logo.No in the entire header. As you can see in the image attached, the logo is still in the left. I want it in the center where the red square is. Thanks.