Joomla! Documentation™

1. open with a text editor the file templates\ja_purity\css\template.css
2. about at line 921 you will find:

   /* HEADER

   --------------------------------------------------------- */

   #ja-headerwrap {

   background: #333333;

   color: #CCCCCC;

   line-height: normal;

   height: 80px; <---- EDIT THIS

   }

   #ja-header {

   position: relative;

   height: 80px; <---- EDIT THIS

   }

   .ja-headermask {

   width: 602px;

   display: block;

   background: url(../images/header-mask.png) no-repeat top right;

   height: 80px; <---- EDIT THIS

   position: absolute;

   top: 0;

   right: -1px;

   }

3. change these values with the desidered height.
4. always in the file templates\ja_purity\css\template.css about at line 957 you will find

   h1.logo a {

   width: 208px; <---- EDIT THIS (same of your logo)

   display: block;

   background: url(../images/logo.png) no-repeat;

   height: 80px; <---- EDIT THIS (same of your logo)

   position: relative;

   z-index: 100;

   }

5. now using your graphic editor you have to resize the heighy of the following files (same height of your header):
   1. templates\ja_purity\imagesheader-mask.png
   2. templates\ja_purity\styles\header\blue\images\header-mask.png
   3. templates\ja_purity\styles\header\green\images\header-mask.png
6. If the height of your logo is different of the height of your header you probanly need to look here Change postion of your logo
7. Remember that if you resize your header you will need header images with different height (see also Replace the header pictures)
8. Finished