跟读练习: No more magic numbers for your breakpoints - 通过YouTube学习英语口语
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Hello my friend and friend.
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Hello my friend and friend.
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I'm back from Amsterdam.
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I was there for Smashing Conf where I had an absolute wonderful time.
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I want to say a really big thank you to Smashing for having me and yeah it was really fun.
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Met a lot of amazing people, had a really good time and I'm going to be back in Amsterdam in June.
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So if you're going to be there around June, CSS day, super excited for that and I'll put a link to
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that in the description in case you want to check it out.
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There is CSS day which is happening and the prices are going up in like a month.
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So if you're going to convince your boss to send you, now would be a good time to do it.
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And there's also the Web We Want conference.
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It's a free conference happening either the day before or after CSS day.
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I always forget which one it is, but I'll put a link to that just in case because I know conferences can be expensive.
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They're putting on an amazing event.
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So if you are in the Amsterdam area, I'd recommend you check that out as well.
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But you're not here for that.
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You're here to learn about breakpoints.
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And I talked all about some of this stuff at the conference.
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My talk is about container queries being amazing.
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We're going to see why, or this is at least one example of them.
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And don't, if you're like, oh, container queries, I'm here for media query stuff.
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Container queries have fantastic support now.
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So please don't just run away.
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They are baseline widely available and support numbers in general are quite good for it.
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So stick around and see why they are amazing, or one of the reasons why they're amazing, where you can see I have my flex column set up right here.
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And when I change, you know, This looks fine, and I'm doing this at 50 rem, which is kind of a random number, but I'm doing this with a media query to start with.
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And the reason I'm doing that is because I want to show that if you change the HTML font size, it will not change the breakpoint.
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Because even though this is set to rem, when you're using a media query, media queries are an at rule that are like the global scope.
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So they can't actually see what's happening inside of selectors.
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And that means you can see here, I've actually like broken my layout, right?
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I have horizontal scrolling because the three columns are so narrow with such a big font size.
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It's exaggerated for demo purposes, but that's fine.
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If we come down here, and I actually, or not down to here, if I come and take a look in my HTML, all of this is inside of my article, or even main.
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Let's use our main this time.
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I used the article when I did this on stage, but we're going to switch this over to a main, and we're going to say that this is a container type of inline size,
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because if you are using container queries, you do have to define a container somewhere.
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This is one of the limitations of using container queries.
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And what that means now is the browser can see not only the size of my main, but the font size of the main as well.
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So if I come down and I switch this media for an at container, the breakpoint is going to update.
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And now we see it's all the way out here instead
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because it's gotten as the rem has gotten bigger on my project.
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And I'm doing this on my HTML.
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I could be doing this on the main or other elements as well, and it's going to see the font size.
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It's just inheriting down into the main, so it's working fine.
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But yeah, it's updated and it's moved the breakpoint all the way out to here.
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And you came here going, well, Kevin, you said no more magic numbers.
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And this is a magic number.
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It's just not in pixels.
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It's in rem instead.
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And you would definitely be right.
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It is a magic number.
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But we can change this to use a smarter unit or one that is a content first unit, which I would say is the CH.
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And I'm going to say 90 CH.
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You may go, why would you do 90 CH, Kevin?
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That seems just as magic of a number, but it's not.
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The ch character, if you don't know it, is the width of a character of your font and all of that.
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So right now it's at this 1.5 rem size based on the font that I'm using.
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It's going 90 characters wide.
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And the reason this is a content first breakpoint now, let's just see where it's at, is it's going to happen when we have about 90 characters long.
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This is an approximation.
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So if you actually take the time to count this, it probably won't be exactly 90 but it's an approximation and
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that reason this is a cool break point to have is
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that means this is happening
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when I'm about 30 for each one of these 30 characters wide for each column
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and that's a really smart break point to have because
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that means we're hitting this like smallish area where things are getting too squished
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because minimum line lengths 25 to 30 characters is getting pretty narrow
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and that's about as small as you can get unless you're just on a mobile device
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and you don't have a choice and you have to go narrower.
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But if you do have a choice, you probably don't want to get smaller than that.
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So instead of guessing at a random number, you can use something like the 90 CH.
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And then if I come up to here
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and I change this back down to a one rem or whatever size you need for your project, it's going to adapt.
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And now that breakpoints over here instead.
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And it's always going to be when we're hitting about 30 characters size for each one.
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Plus we have like the padding on stuff.
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So it's a general approximation, but we're doing this, not just based on some random magic number that a media query breakpoint uses,
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where you're maybe getting it from the tailwind breakpoints or the bootstrap breakpoints, or you're just coming up with something, making it bigger, smaller, figuring out where it works,
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you can actually make informed decisions based on the content, which I love.
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This is such a fun way to work, in my opinion.
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And I really like this pattern.
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It's one of my favorite ways of using container barriers right now, though there's other really cool things we can do with it, such as wrap detection, which is really exciting,
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knowing when something is wrapping based on an intrinsic breakpoint that you might have.
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And I looked at that last week.
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That video is right here for your viewing pleasure or link down in the description if you need it over there.
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And if you like this pattern
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and you want to dive deeper into the world of container queries and see more of the things they can do, my course CSS Demystified has a bunch of lessons where it's covering container queries from the basics of how they work,
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some of the limitations they have, the gotchas, and other issues that you can run into with them, and awesome patterns and good ways of using them as well.
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So if you'd like more information on that, the link is down in the description for you to check out.
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And with that, I'd like to thank my enabler of awesome, Johnny, as well as all my other patrons and channel members for their continued support.
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And with that, thank you very much for listening.
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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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本课概要
在本节课中，学习者将通过观察视频学习如何使用断点。我们将讨论容器查询的概念，并且如何利用这些技术来优化网页布局。通过实践，您将更好地理解 CSS 媒体查询与容器查询之间的区别，了解“魔法数字”的概念以及何时使用这些技术。即便您是初学者，观看这个视频时也可以获取新的技术点，帮助您在看YouTube学英语的过程中提高自己的英语发音。
关键词汇与短语
- 断点 (breakpoints)
- 容器查询 (container queries)
- 魔法数字 (magic numbers)
- 媒体查询 (media queries)
- 字体大小 (font size)
- 水平滚动 (horizontal scrolling)
- 布局 (layout)
- HTML (HTML)
练习建议
为了更好地掌握本节课的内容，建议您在观看视频时进行shadow speech练习。您可以跟着视频的节奏模仿演讲者的发音和语调，以此来提高您的英语发音，同时熟悉技术术语。由于视频的语速较快，您可以在初次观看时适当减慢播放速度。在每当讲到重点概念时，暂停并重复这些内容，加深记忆。尤其是在提到“魔法数字”时，注意演讲者的表达方式，这将有助于您在日后的雅思口语练习中更加自信。
此外，尝试在观看视频后自己总结一下容器查询和媒体查询的优缺点，分享给朋友或者在相关论坛进行讨论，这样可以帮助您更深入地理解所学内容。在不同的设备上测试您的代码，让您更能体会布局如何随着不同的字体大小而变化，进一步巩固学习效果。
什么是跟读法？
跟读法 (Shadowing) 是一种有科学依据的语言学习技巧，最初开发用于专业口译员的培训，并由多语言者Alexander Arguelles博士普及。这个方法简单而强大：您在听英语母语原声的同时立即大声重复——就像是一个延迟1-2秒紧跟说话者的影子。与被动听力或语法练习不同，跟读法强迫您的大脑和口腔肌肉同时处理并模仿真实的讲话模式。研究表明它能显着提高发音准确性，语调，节奏，连读，听力理解和口语流利度——使其成为雅思口语备考和真实英语交流最有效的方法之一。