SVG elements aren’t governed by a CSS box model like HTML elements are. This makes positioning and transforming these elements trickier and may seem—at first glance—less intuitive. However, once you understand how SVG coordinate systems and transformations work, manipulating SVGs becomes a lot easier and makes a lot more sense. In this article we’re going to go over three of the most important SVG attributes that control SVG coordinate systems: viewport, viewBox, and preserveAspectRatio.