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Q&A How do I make animated dotted lines ("marching ants") in images on my web page?

SVG apparently has an <animate> tag which can do this. The thing you would animate is the offset of the points/dashes on the line. This is called <stroke-dashoffset>. It sounds like y...

posted 1y ago by matthewsnyder‭

Answer
#1: Initial revision by user avatar matthewsnyder‭ · 2023-10-23T16:44:34Z (about 1 year ago)
SVG apparently has an [`<animate>` tag](https://developer.mozilla.org/en-US/docs/Web/SVG/Element/animate) which can do this.

The thing you would animate is the offset of the points/dashes on the line. This is called [`<stroke-dashoffset>`](https://developer.mozilla.org/en-US/docs/Web/SVG/Attribute/stroke-dashoffset).

It sounds like you are not writing the SVG by hand, but exporting from a program. You could of course edit the resulting SVG with a text editor. But sounds like you can also use CSS to alter it: https://css-tricks.com/svg-line-animation-works/

```
.path {
  stroke-dasharray: 100;
  animation: dash 5s linear;
}

@keyframes dash {
  to {
    stroke-dashoffset: 1000;
  }
}
```