HTML/Javascript/CSS Reveal Top to Bottom Primer Tutorial
Welcome to a new discussion regarding HTML, Javascript and CSS on the theme of “reveal”. We’ll be doing several postings on this theme, and today we have the first.
Do you often wish to make webpages that hide things until the user interacts with the webpage or some time period has expired, so that there is some sort of element of surprise?
No?
Do you sometimes wish to make webpages that hide things until the user interacts with the webpage or some time period has expired, so that there is some sort of element of surprise?
Still no, huh? (Aside: two can play this little game)
Do you occasionally wish to make webpages that hide things until the user interacts with the webpage or some time period has expired, so that there is some sort of element of surprise … OR …
will allow those who have never had this thought in their life on Earth?
No again, huh? (Aside: two planets can play this puerile little game!)
Do you ever wish to make webpages that hide things until the user interacts with the webpage or some time period has expired, so that there is some sort of element of surprise … OR …
will allow those who have never had this thought in their life on Earth, nor Mars?
Non? Nicht? Good nicht! (chortle, chortle)
Well, that’s fixed their little red wagon.
Here is a tutorial that “reveals” a surprise from top to bottom using HTML, Javascript and CSS, featuring:
- CSS overflow: hidden; style property
- Encasing working visible HTML elements within div element for ease of:
- positioning
- scrolling, or not
- visibility control
- Javascript setInterval and clearInterval timer functionality
- Javascript DOM methods to dynamically change HTML (over time)
- HTML/CSS body element background URL (with fallback background colour) and the Javascript control of its fallback to just the background colour and that it is Clickable
So here is today’s tutorial’s live run, and here is the HTML programming source code you could call reveal_fromtoptobottom.html which called on the content of this tutorial.
Chow for now, brown cow (she’s always on(line), you know … but is anything sinking in?! … I haven’t been able to moo respectfully in public after 63.5 lessons?! … she still owes me that half lesson when she didn’t get up in time for milking).
If this was interesting you may be interested in this too.
