How To Add Background images to Blogger Templates

How To Add image to the Header
log in to your dashboard--> layout- -> Edit HTML, scroll to where you see this:-
#header-wrapper {

Add immediately after that the following line:-
background-image: url(URL address of your image);
See the example below.
#header-wrapper {
background-image: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdZGlvOQ5Jh4x8ANTjAMbMGF69dbBQKw-X8xZny5zcYMlMo4ZjaCG_-c-EOnsPDO845KdkWfaMDqxKv1-DCGgkJ0TraHAGZ9VpGEUK77_6Y55ORjAXeDDkztTJw2k_-2QVk5DFEDaN-Mg/s400/digg1.jpeg);

Save the template and refresh your site.


How To Add image to the Main Background
log in to your dashboard--> layout- -> Edit HTML, scroll to where you see this:-
body {
Add immediately after that the following line:-
background-image: url(URL address of your image);
See the example below.
body {
background-image: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdZGlvOQ5Jh4x8ANTjAMbMGF69dbBQKw-X8xZny5zcYMlMo4ZjaCG_-c-EOnsPDO845KdkWfaMDqxKv1-DCGgkJ0TraHAGZ9VpGEUK77_6Y55ORjAXeDDkztTJw2k_-2QVk5DFEDaN-Mg/s400/digg1.jpeg);
Save the template and refresh your site.

How To Add image to the Posts Background
log in to your dashboard--> layout- -> Edit HTML, scroll to where you see this:-
#main-wrapper {
Add immediately after that the following line:-
background-image: url(URL address of your image);
See the example below.
#main-wrapper {
background-image: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdZGlvOQ5Jh4x8ANTjAMbMGF69dbBQKw-X8xZny5zcYMlMo4ZjaCG_-c-EOnsPDO845KdkWfaMDqxKv1-DCGgkJ0TraHAGZ9VpGEUK77_6Y55ORjAXeDDkztTJw2k_-2QVk5DFEDaN-Mg/s400/digg1.jpeg);
Save the template and refresh your site.

How To Add image to the Sidebar Background
log in to your dashboard--> layout- -> Edit HTML, scroll to where you see this:-
#sidebar-wrapper {
Add immediately after that the following line:-
background-image: url(URL address of your image);
See the example below.
#sidebar-wrapper {
background-image: url(https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjdZGlvOQ5Jh4x8ANTjAMbMGF69dbBQKw-X8xZny5zcYMlMo4ZjaCG_-c-EOnsPDO845KdkWfaMDqxKv1-DCGgkJ0TraHAGZ9VpGEUK77_6Y55ORjAXeDDkztTJw2k_-2QVk5DFEDaN-Mg/s400/digg1.jpeg);
Save the template and refresh your site.