html - External Style Sheet error in the codeigniter framework php? -

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i put code in search.php 1 of view pages , had external style sheet

i called inside file using

<head> <link rel="stylesheet" type="text/css" href="mystyle.css" /> </head>

but not working how can solve problem??? if use 

include('mystyle.css');

it works wanna use first code how can use correctly???

you have wrong path, try:

<link rel="stylesheet" type="text/css" href="<?php echo base_url();?>css/mystyle.css" />

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