Compare the applications below:

pinterest: allows users to create and share digital bulletin boards
instagram: allows users to post pictures and follow others' posts

what do these applications have in common?

both involve a form of visual communication.
both require knowledge of html to post.
neither can be accessed through desktops or mobile devices.
neither involves the use of images.

The answer is the first response, by order of elimination, you can eliminate the rest.

HTML is a programming language that is used to design websites. You don't need to program a website to make a post on instagram, especially if you are using the app.

If you check the app store on your phone, you can find instagram in the app store, which lets you access it from your mobile device. Thus, the third option is wrong.

Finally, just read the description of instagram. It was made for sharing pictures, so the last option is wrong.

The correct answer is the first response, then by order of elimination,  you can eliminate the rest. When HTML is programming the language that is used to be design websites. So that You don't need to program a website to make a when you post on Inst-agram, that are especially if you are using the app. Therefore If you check the app store which was on your phone, then you can find Inst-agram in the app store, which lets you access it from your mobile device. Thus, the third option is wrong. So that Finally, just read the description of Inst-agram. Then It was made for sharing pictures so that the last option is wrong.

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Css3 is the latest evolution of the cascading style sheets language and aims at extending css2.1. it brings a lot of new features and additions, like rounded corners, shadows, gradients, transitions or animations, as well as new layouts like multi-columns, flexible box or grid layouts.credits to medium for making this answer credits to google for copying this answercredits to me for putting this answer on your question