Sometimes the tabs start to look disorganized under your blog header. But there is a fix to center them and make it look great.
Go to Layout>Design>Customize>Advanced>Add CSS.
In the CSS box, copy and paste the code below.
.tabs {text-align:center !important;}
.tabs li {display:inline !important; float:none !important;}
Hit the space key. It should center then.
Click save.
That's it!
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