JavaScript is introduced to replace hard-coded layered divs by programmatically generating the layers for a 3D text effect. A single HTML element with the class layeredText serves as the container for generated layers. JavaScript sets up the layers and defines a few CSS variables while keeping style calculations off the main thread to preserve high frame rates. Animations are paused initially to revert to the static example. A generateLayers function receives a container element and builds the layer structure. Multiple layeredText elements on a page are supported by selecting and processing each element individually.
This time, we're going dynamic. In this final chapter, we're stepping into the world of interactivity by adding JavaScript into the mix. We'll start by generating the layers programmatically, giving us more flexibility and cleaner code (and we'll never have to copy-paste divs again). Then, we'll add some interaction. Starting with a simple :hover effect, and ending with a fully responsive bulging text that follows your mouse in real time. Let's go.
We're only using JavaScript to set up the layers and define a few CSS variables. That's it. All the actual style calculations still happen off the main thread, maintain high frames per second, and don't stress the browser. We will begin with a simple function called generateLayers. This is where all the magic of layer generation will happen. To work its magic, the function will receive the element we want to use as the container for the layers.
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