Demonstration of the effect of timing functions on an animation, using a Bezier curve controller. How to use: Drag the handles (green dots) of the control below to adjust the way the red dot runs its loop. It starts and ends in its ‘home’, but the speed may vary, and the dot may even temporarily […]
Category: Web development
Categories
Move a dot along a path
Create a dot moving along a path using SVG and JavaScript
Categories
Animation on page load
To bring a webpage to life, you may want to start an animation when the content of the page appears. For example, a text or an image fades in, or moves to certain position, or grows to a certain size, etc.
Here is a basic method to kick off a page load transition
Categories
Understanding font size
What does it mean to specify font-size to be, say, 16px? Exactly what part of the font is 16px?
Categories
Scaling grid tiles containing text
Suppose we have a design with a component that contains an image and text, with responsive dimensions and a fixed height to width ratio. The font size scales too, so the text wraps the same for each width. This is what the HTML structure of the component might look like: The height of the tile […]
Categories
Transitions of SVG icons
How can we style SVG images on a web page? For instance to define a transition on hovering. Using the <img> tag will not work. Neither will the CSS property background-image. We must put the SVG element inline in the HTML code. Now we can style the SVG elements using CSS selectors. Include external file […]
Categories
Transforming a static element
When a CSS transform is applied to an element, that element’s position property is forced to relative. This side effect introduces quirky behaviour, when you depend on the position being static.
Categories
Order pseudo-classes
The order of definition of pseudo-classes for the anchor tag is crucial. In Firefox I noted that if you define :visited after :hover, you may not get the style you expect when hovering over an <a> element. That’s logical, if you think of it. But it can be confusing because the Inspector seems to ignore […]
With the WordPress Gutenberg editor it is easy to create full-width blocks. We can use them to create rows that span the whole width of a page. Then we can set a background colour or image for that row, while its content aligns with the content of regular (normal width) blocks. This is often used […]