Margin Convention

First define an object with a property for each of the four sides (clockwise from the top, as in CSS) representing the respective margins in pixels. You may need to adjust the margins to fit your tick labels. Define the width and height as the graphic’s outer dimensions. To use the reactive width from the Observable standard library, do not define a width; only define a fixed width for a non-respo

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マージンの取り方 convention