header.php

add div class content
footer.php add class content

Add content div to footer
mobile CSS styles added with error

Warning: str_replace() expects at least 3 parameters, 2 given in
C:\XAMPP\htdocs\NECN\wordpress\wp-content\themes\necn\functions.php on
line 74
Changes to header tore: mobile menu
functions.php changes with error

Warning: str_replace() expects at least 3 parameters, 2 given in
C:\XAMPP\htdocs\NECN\wordpress\wp-content\themes\necn\functions.php on
line 74