An add-on for Contact Form 7 that will let you to hide only Success Message after defined time.

edocr Document Viewer is a document viewer that displays dozens of different file types on your WordPress website, without any additional software.

PrizmDoc Reader is a document viewer that displays dozens of different file types on your website, without any additional software.

*The icons will then appear on the website. You can also add a welcome message and a company logo. Further, the plugin allows for a pop up option. You can set a delay time and the icons will pop up after that.