HTML, CSS, SVG, D3.js, style, attr

This is a note.

I was very confused when styling HTML elements and SVG, so I decided to make things clearer for myself as well as for others through this post.

SVG is just an HTML element

First of all, let’s think about the relationship between HTML and SVG.

Let’s first take a look at this example:

<div class = “demo1” style=“text-align:  …