September 2012
Beginner to intermediate
316 pages
7h 44m
German
Content preview from Workshop HTML5 & CSS3Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
25 Doctype-Deklaration
Die erste Zeile in jedem HTML-Dokument ist die Doctype-Deklaration. Auch wenn der Vergleich nicht ganz korrekt ist: Die .doc- oder .xls-Endung eines Dokuments lässt den Computer wissen, dass es sich bei einer Datei um ein Word-Dokument oder eine Excel-Datei handelt. Und über die .html- oder auch .htm-Endung einer HTML-Datei weiß der Computer, dass er diese Datei mit einem Browser öffnen muss. Die Doctype-Deklaration teilt dann dem Browser mit, nach welchem Standard die Datei aufgebaut wurde, sprich welche Regeln er auf die HTML-Elemente innerhalb der Datei anwenden muss, um die Webseite korrekt anzuzeigen.
Etwas fachlicher ausgedrückt: Die sogenannte DTD (Document Type Definition) legt fest, wie ein Browser den HTML-Code ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.