How to Make Tumblr Posts Transparent. ... Edit your theme's HTML to insert a new background. Getty. ... W3Schools.com: CSS Image Opacity / Transparency; Ruri Ranbe.

A transparent div can be created with or without content. When a div is made transparent with content, images and text are also made transparent along with the div. In case the div is made transparent ...

You can also add a background-position attribute to your CSS, with values such as center, left top and right bottom. Add this attribute to make your GIF appear at specific locations in the background.