Pratique du Shadowing: Transition to and from display: none - Apprendre l'anglais à l'oral avec la vidéo
Création de la leçon...
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Hello, my friend and friend, if you've ever needed to transition something in and out in different ways, depending what it is,
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but you're going from a display of none to a display of something else doesn't actually work in CSS, except now it does.
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It just takes one property and one new at rule
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and we can pull something like this off or do much fancier things if you'd like as well.
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So if you'd like to know how to do this, well, then let's dive right into it.
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All right.
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So how do we do this?
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Well, you can see here, I'm first of all opening and closing things with this button that's right here, which I'm using invoker commands for with a dialog.
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So if I scroll all the way down to the bottom, I have a dialog set up here that has an ID on it of my newsletter modal.
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And then all the way back up here, the invoker command for my newsletter modal is doing a show modal.
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Invoker commands are in all browsers now, but it's relatively new.
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So if you want to be a little bit safer, you can do the same thing using a little bit of JavaScript and that works fantastically well without any issues.
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And of course, you don't have to be doing this with a dialog.
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This would work with anything where you're going from a display of none to a display of grid.
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And what we want to do is do this transition, and I can't do it because normally you can't do a transition on a discrete animation, which is what display is.
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If you don't know what a discrete animation is, I'll put a link to the MDM to explain that.
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But the fix is doing, or the first fix, because we need two fixes, they're both one-liners basically, a transition behavior of allow discrete.
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And this means you can take something that is a discrete animation and we're allowed to transition it.
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Does not work when we open it, but look at that.
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It fades away when I'm closing it, which is amazing.
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A little bit frustrating that's only in one direction.
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And that's just because when we go from a display of none to the display of grid, it's instantly getting to this state.
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And so it lives here it didn't know what existed before
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but when i'm closing it it's going oh we're doing our transition behavior of allow discrete
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so i'm going to let my display property stay as the grid for two seconds
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while the other animations or transitions are running so i'm saying animations
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but transitions in this case are going to run
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so the opacity is going to work and we can do other stuff
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which we'll see in a second as well
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so how do we get this to actually work the other
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way around we're on our open state at the end of the open state
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and this is really important that it comes after and not before
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which is annoying the order of things we do an at starting style
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and this is a new at rule
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that we have for exactly what we want to do here
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where i want to start with an opacity of zero
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and now it will transition in and it will transition back out fantastic right So the order here is important.
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We're doing the closed state, then we're doing the open state, and then we're doing the from closed state to open state.
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And it's a little bit weird, maybe leave some comments, but it does need to be in that specific order for it to work properly.
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At least this part does.
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The from open to closed maybe could be the other way around.
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But again, this probably makes the most sense.
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So we're going, this is my closed state.
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This is my open state.
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And then the transition phase here before the animation starts.
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If you put this earlier, it will not work because of the way the cascade works.
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And the last rule wins, just like with a media query or anything else.
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So the cool thing with starting style, because if you're just doing this, I mean, it works.
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It's fine.
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It's one literally, well, a one-liner.
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Let's make it a one-liner.
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So I'm not lying.
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There we go.
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It's now a one-liner.
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But the nice thing with starting style is we can do a little bit more with it.
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So let's also here, I'm going to add two lines actually.
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I'm going to add an overlay.
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I don't necessarily need it in this case, but with modals or dialogue, if you're doing popovers too,
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this could be useful because this is dealing with the top layer
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and can be useful and we also have our backdrop it might be associated with
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that but I might be wrong on that one
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but I also want to add a translate here as well
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so we're going to do our opacity our display
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and overlay are just getting thrown on here to make sure everything works
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and then the translate is getting added at the end
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so what I can do is let's come here and
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so we're going to do a translate of 0 50 pixels which is it's gonna move it down a little bit.
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Then we're gonna have a translate of a 0, 0.
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And on the starting style, let's come in with a translate of a 0, negative 50 pixels.
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And this is one of the things I like about starting style, is it means we can have an entry animation and an exit animation, and they can be different from one another.
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The last thing, just really quickly, you might have noticed my backdrop is not actually transitioning or animating, which is a little bit weird.
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What I would do if you have a backdrop or something like this
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is just throw an opacity of zero on it for the regular state.
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Then when our modal is opened,
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this could have an and backdrop of opacity of one and then and backdrop opacity of zero.
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And you guessed it.
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We just come here and do a transition opacity two seconds.
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And in doing that, when it opens, you can see because the opacity is changing,
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the filter ends up actually sort of transitioning back and forth at the same time as well.
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So this is like the easiest way is just playing with the opacity on backdrops
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or other things like that that you have at your disposal.
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And yeah, just like that, we're now transitioning to and from a display of none.
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It's fantastically easy to do.
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And with that, I'm going to say a very big thank you to my enabler of Awesome Johnny, as well as all my other patrons and channel members for their monthly support.
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And of course, until next time, don't forget to make your corner of the internet just a little bit more awesome.
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Vocabulaire et conseils d’expression pour cette leçon
Cette leçon d’expression orale de niveau C1 s’appuie sur la vidéo « Transition to and from display: none ». Les mots qui reviennent le plus souvent : transition, display, opacity, animation, backdrop. Cette vidéo contient 85 phrases et 1178 mots à répéter en shadowing. La partie parlée dure 5:29. Le locuteur parle vite, environ 215 mots par minute : attendez-vous à des liaisons et à des sons réduits. 85 % des mots font partie des 3 000 mots les plus courants en anglais ; le reste mérite d’être vu avant de commencer.
Vocabulaire clé de cette vidéo
Les 15 mots les plus avancés de la vidéo, avec leur prononciation et leur sens :
| Mot | Prononciation | Sens |
|---|---|---|
| opacity nom | /oʊˈpæsɪti/ | opacité |
| backdrop nom | /ˈbæk.dɹɑp/ | décor, toile de fond |
| discreet adjectif | /dɪˈskɹiːt/ | discret, respectueux |
| modal adjectif | /ˈməʊdəl/ | modal |
| translate verbe | /tɹænzˈleɪt/ | traduire |
| fantastically adverbe | fantastiquement | |
| pixel nom | /ˈpɪk.səl/ | pixel |
| newsletter nom | /ˈn(j)uzˌlɛtɚ/ | bulletin, lettre d'information |
| animate adjectif | /ˈæn.ə.mət/ | animé |
| cascade nom | /kæsˈkeɪd/ | cascade, chute d'eau |
| enabler nom | facilitateur | |
| frustrate verbe | /ˈfɹʌsˌtɹeɪt/ | frustrer |
| query nom | /ˈkwɪɹ.i/ | question |
| patron nom | /ˈpeɪ.tɹən/ | mécène |
| scroll nom | /skɹoʊl/ | rouleau (de papyrus ou de parchemin), papyrus |
Les verbes à particule que vous entendrez
| Mot | Prononciation | Sens |
|---|---|---|
| back up verbe | reculer | |
| end up verbe | se terminer, se finir | |
| set up verbe | /ˌsɛt ˈʌp/ | mettre en place, installer |
La grammaire de cette vidéo
Les structures que le locuteur utilise le plus, avec les mots exacts de la vidéo :
| Structure | Dans la vidéo |
|---|---|
| Phrases conditionnelles if + proposition, will/would + verbe — une condition et son résultat | If you put this earlier, it will not |
| Voix passive be + participe passé — l’accent est mis sur ce qui arrive, pas sur qui le fait | might be associated · is let · is opened |
| Propositions relatives who / which + proposition — une précision sur une personne ou une chose | animation, which is · pixels which is · animating, which is |
Prononciation à surveiller
Le locuteur utilise 41 contractions et formes réduites, comme we're, I'm, don't. Prononcez-les sous leur forme courte, telles que vous les entendez.
Comment s’entraîner avec cette vidéo
- Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
- Commencez à la vitesse 0,75×, répétez phrase par phrase, puis revenez à la vitesse normale quand cela devient facile.
- Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme opacity, backdrop, discreet.
Qu'est-ce que la technique du Shadowing ?
Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.