Speedlify scripties

https://dev.to/dailydevtips1/i-made-my-website-28ms-faster-with-content-visibility-466e 

     **auto** (This is the one we are looking at. It will only render this element once the browser needs it!)

So how can we add it to elements?

```
.element {
    content-visibility:auto;
}
```

I've added this on my homepage to the article-list and footer elements.