i really don't think that you can because i have tried researching for a answer and
i have tried to figure out the answer myself and i don't think that it is possible!
You can put a background on a gmail page via various themes. There are themes like black, green, blue, white etc. They put their respective backgrounds on the screen.
You can put GIF file in Gmail picture. You can attach the picture from you local drives. You can also upload the image automatically if it is in your Google Drive.
Here's the HTML tag: <body background="yourimage.gif"> or <body background="yourimage.jpg">
You can only change a website if it belongs to you. for instance i have a website of my own. i created it using webeden. when i log in, i can edit anything i want, including the color background. you try!
Change the <body> tag to <body style="background-image: image.jpg">. Replace image.jpg with your image.
Yo can set the background image by setting the style element. To put it in a panel, wrap it inside a DIV tag.
view your image and then copy the URL and then paste it to background URL=
Use html only and that should give you a static page. You can put image as background by using css
To set your YouTube background, go to your channel, then settings, then advanced options, then background image. Choose your image from a file on your computer.
go to the website and type in movies.
You right click the the background then click on format background then picture and texture fill, file and then select which picture then click close.
you can not change the background You can set a lock-screen or home-screen background by going to "Settings" then "Wallpaper" you can select an image from Apple's default selection or a picture you have put onto your device. After selection the image you want to use, tap the image. This will bring up a preview screen. Once you are happy with the background tap "Set" and you will be asked if you want to set the image as the lock screen background, home screen background or both.