title: Css Changes of a file after adding another file
body: <p>I have one file menubar.php and one file Homepage.php 
  When i add the menubar.php  to Homepage.php  the Overall Css of file Homepage.php changes.
  (Mostly Changes occurs in padding and margins and div height and width and all div becomes scattered )</p>
  
  <p>I have tried to find the error but fialed.
  Any one will help me that what kind of error is that.</p>