Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:00,680 --> 00:00:05,960 And welcome back to the second 'Web-developer Fundamentals'. 2 00:00:06,020 --> 00:00:09,599 Another very important aspect of being a web developer 3 00:00:09,600 --> 00:00:14,710 and that is the fact that we have multiple web browsers. 4 00:00:14,830 --> 00:00:20,289 Now if you remember Tim Berners-Lee the inventor of the worldwide web created it because we needed a 5 00:00:20,290 --> 00:00:28,569 standard way to share documents amongst each other, and through HTML, CSS and Javascript we're able 6 00:00:28,570 --> 00:00:33,840 to read these files and actually have beautiful websites. 7 00:00:33,870 --> 00:00:37,170 Now, when we send these files over 8 00:00:38,290 --> 00:00:39,580 Each of these browsers 9 00:00:40,480 --> 00:00:46,560 read the HTML, CSS, and Javascript, and layout the web-page for us. 10 00:00:46,880 --> 00:00:53,420 But as you can see each one of them is owned by a company, and is a different browser. 11 00:00:53,480 --> 00:01:01,130 So that means they all have to agree on how they're going to read the HTML, CSS, and Javascript, because 12 00:01:01,370 --> 00:01:09,200 if they don't all agree, then well, we need to create different files specific for each browser, because 13 00:01:09,230 --> 00:01:14,210 each one of them has a different idea of what HTML, CSS, and Javascript is. 14 00:01:14,320 --> 00:01:15,320 And you know what? 15 00:01:15,370 --> 00:01:21,709 When the World Wide Web got started we had something called, 'the browser wars' where each browser was 16 00:01:21,710 --> 00:01:24,799 kind of doing its own thing implementing different things. 17 00:01:24,800 --> 00:01:32,459 And we still have that to this day, to some extent, there is a governing body which kind of creates 18 00:01:32,460 --> 00:01:39,270 the standards now. But it is still a pain point for developers, where we need to figure out that 19 00:01:39,330 --> 00:01:47,349 whenever we send our files to the web browser, it all looks the same. And that is one of the biggest problems 20 00:01:47,350 --> 00:01:52,870 we have as developers and you'll see tools later on in this course that try to solve that issue. 21 00:01:53,020 --> 00:01:58,239 But you'll always encounter this problem, where we want to make sure that wherever your browser gets 22 00:01:58,240 --> 00:02:07,059 rendered, anybody can see your website, and not only that we also have mobile phones now that access 23 00:02:07,060 --> 00:02:07,540 the Internet. 24 00:02:07,570 --> 00:02:08,620 We have iPads. 25 00:02:08,920 --> 00:02:16,969 So now, not only do we have to worry about different browsers, and whether they agree on what code works 26 00:02:16,970 --> 00:02:18,160 in each of these files. 27 00:02:18,170 --> 00:02:24,229 We also have to make sure that our web sites look good on small screens on big screens on all sorts 28 00:02:24,230 --> 00:02:30,199 of different screens, and that is a very important concept something that, when you get to become a web 29 00:02:30,200 --> 00:02:37,099 -developer you'll encounter this problem where you have to test on each device, each browser to make 30 00:02:37,100 --> 00:02:42,650 sure everything works. And we'll use some tools that have developed over the years to solve these problems 31 00:02:42,980 --> 00:02:48,710 so that it's not as much as a pain point as it is or as it was. All right, 32 00:02:48,740 --> 00:02:54,320 one more lesson to go and then we're going to get coding. See you on the other side. 3807