Revert "Update head.php"

This reverts commit d283990eb9e66988ad96f5398905f5c7853b0855.
Revert "Update style_search.css"

This reverts commit 7bb0d8554b9d55c97a2600adb2597e7db4a36c8e.
Revert "Update search.php"

This reverts commit a12716da8142a34b77a456edcf3690b948851c37.