Before anybody marks it as duplicate I want to say that I have already checked this "What do repeating css selectors mean when displayed via Google Chrome console log?" but it didn't help because in my case the CSS is written only once in the CSS file but still it show's up multiple times in the inspect element.
I have checked the site in multiple browsers but it has same issue. Here are screenshots I took from:
CHROME:
FIREFOX:
Code inside HEAD TAG
<head>
<title>ABC INC.</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="description" content="Global Changes">
<meta name="viewport" content="width=device-width, initial-scale=1">
<?php set_include_path( get_include_path() . PATH_SEPARATOR . $_SERVER['DOCUMENT_ROOT'] ); ?>
<link href="/ABC_INC/gchanges/CSS/123.css" rel="stylesheet" type="text/css">
</head>
<link href=''>tag that refer to 123.css file inside your<body>tag, you have to remove them and keep just one in the<head>tag and it should be good.