This is a step by step tutorial to build a stunning photo gallery. There are 4 steps to achive the final web app:

• static version
• dynamic version
• inverse data flow
• unsplash integrated version

they are in 4 folders respectively, if you want to view the result for one version, use the following command:

elm-live static_version/Main.elm --output=elm.js --open
elm-live static_version/Main.elm --open

Noted: I recommend to use the command with output=elm.js, this will not touch index.html file which included the css file if you use the command without output=elm.js, the css style will gone:)