Why Won\'t My SVG Center in a Div Using `margin: auto`?

How to Center a Scalable Vector Graphic (SVG) Within a Div

In your quest to center an SVG within a div, you encountered an intriguing issue where setting both the left and right margins to auto had no effect. To unravel the mystery, let's delve into the underlying mechanics.

By default, SVGs are considered inline elements, meaning they behave like text when it comes to positioning. Applying margins directly to inline elements tends to be ineffective. To remedy this, you have several options:

1. Force Block Display:

Add the CSS property display: block to the SVG. This transforms it into a block-level element, allowing it to occupy the full width of its parent div. With this setting, setting margin: auto will indeed center the SVG horizontally.

2. Utilize Text Alignment:

Depending on your layout, you could opt to keep the SVG inline and instead set text-align: center on the parent element. This will align all inline content, including the SVG, within the parent's width.

3. Flex or Grid Layouts:

Consider using flexible or grid layouts on the parent element. These modern layout techniques offer greater control over element positioning and can be used to center the SVG using techniques such as justify-content: center or grid-template-columns: auto auto auto.

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