In one sentence, describe what the following article is about: Before you can fix the nail, you need to make sure that your hands are clean and free of oils.  Use warm water and soap to wash your hands or feet. Dry well with a clean towel. Wash and dry carefully to avoid accidentally snagging the torn nail and making matters worse. If the tip of your nail broke off completely and you want to reattach it, soak the broken tip in warm water until it feels pliable again. If your nail is still attached or still pliable, disregard this step. Use the tip of the toothpick to ease the broken portion of the nail back into place. Press down on the nail with firm, even pressure, using the side of the toothpick.  Again, it is important to avoid getting glue directly on your fingers. Apply pressure for at least 1 minute to ensure that the nail adheres properly.
Summary: Wash your hands or feet. Soak the detached nail in warm water. Press the nail into place.

In one sentence, describe what the following article is about: Tap the purple icon with a white star and a video camera on it. Tap the Projects tab at the top of the screen, then tap a project that you want to open. Tap one of the |►◄| icons in between two clips. A pop-up menu will appear. Doing so will place a fade-out transition on the end of the left clip, and a fade-in transition on the right clip. Repeat this step for any other transition icons that you want to change. It's in the bottom-right corner of the screen. Doing so prompts a pop-up menu to appear. If you don't see this option, tap a clip, then swipe right or left. The switch will turn on {"smallUrl":"https:\/\/www.wikihow.com\/images\/1\/15\/Iphoneswitchonicon1.png","bigUrl":"\/images\/thumb\/1\/15\/Iphoneswitchonicon1.png\/46px-Iphoneswitchonicon1.png","smallWidth":460,"smallHeight":300,"bigWidth":"46","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of an iPhone\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Fair_use\">Fair Use<\/a><br>\n<\/p><\/div>"}. Doing so adds the black fade-in effect to the beginning of your project. The switch will turn on {"smallUrl":"https:\/\/www.wikihow.com\/images\/1\/15\/Iphoneswitchonicon1.png","bigUrl":"\/images\/thumb\/1\/15\/Iphoneswitchonicon1.png\/46px-Iphoneswitchonicon1.png","smallWidth":460,"smallHeight":300,"bigWidth":"46","bigHeight":"30","licensing":"<div class=\"mw-parser-output\"><p>I edited this screenshot of an iPhone\n<\/p><p>License: <a rel=\"nofollow\" class=\"external text\" href=\"http:\/\/en.wikipedia.org\/wiki\/Fair_use\">Fair Use<\/a><br>\n<\/p><\/div>"}. This will add the black fade-out effect to the end of your project. It's in the top-right corner of the screen. Doing so saves your settings and applies the black fade-in and/or fade-out effects.
Summary:
Open iMovie. Select a project. Select a transition icon. Tap Fade. Tap Settings . Tap the "Fade in from Black" switch . Tap the "Fade out to black" switch . Tap Done.