Which tag is used to input image and vedio in in a block tag?

Source file can also input by this tag, https://www.sololearn.com/discuss/233666/?ref=app https://www.sololearn.com/discuss/499134/?ref=app https://www.sololearn.com/discuss/17321/?ref=app https://www.sololearn.com/discuss/1663187/?ref=app https://www.sololearn.com/discuss/1709312/?ref=app https://www.sololearn.com/discuss/1851537/?ref=app