y - SVG 编辑

该属性在用户坐标系统中标识了一个y轴坐标。本坐标的确切效果依赖于每个元素。大多数时候，它体现了引用元素的矩形区域的左上角的y轴坐标（请阅读每个元素的文档以了解例外情况）。

如果没有指定这个属性，效果相当于值被设置为0，除了<filter>元素以及<mask>元素；这两个元素的y默认值为-10%。

用法

类别	无
值	<coordinate>
可变性	Yes
规范文档	SVG 1.1 (2nd Edition): altGlyph element SVG 1.1 (2nd Edition): cursor element SVG 1.1 (2nd Edition): fePointLight element SVG 1.1 (2nd Edition): feSpotLight element SVG 1.1 (2nd Edition): filter element SVG 1.1 (2nd Edition): foreignObject element SVG 1.1 (2nd Edition): glyphRef element SVG 1.1 (2nd Edition): image element SVG 1.1 (2nd Edition): pattern element SVG 1.1 (2nd Edition): rect element SVG 1.1 (2nd Edition): svg element SVG 1.1 (2nd Edition): text element SVG 1.1 (2nd Edition): use element SVG 1.1 (2nd Edition): Filter primitive SVG 1.1 (2nd Edition): mask element SVG 1.1 (2nd Edition): tspan element