画布默认大小 [英] canvas default size

问题描述

Chrome似乎会将canvas标签的默认宽度设置为300像素。

Chrome seems to set canvas tags a default width of 300px.

这是一个有点麻烦，当我想要一个画布默认为它的大小div。

This is a bit of a nuisance when I want a canvas to default to the size of it's containing div, which has an unspecified size.

使用范例这里 ，我想画布默认为添加填充的标题的宽度。

Using the example here, I'd like the canvas to default to the width of the heading with added padding.

希望有意义。

这是否可能没有javascript？

Is this possible without javascript?

推荐答案

Finnnn，你是对的。

Finnnn, you are right.

http：// www.w3.org/TR/2012/WD-html5-author-20120329/the-canvas-element.html#the-canvas-element

canvas元素有两个属性来控制坐标空间的大小：width和height。

The canvas element has two attributes to control the size of the coordinate space: width and height.

这些属性在指定时必须具有有效的非负整数值。

These attributes, when specified, must have values that are valid non-negative integers.

默认为 300 ，height属性默认为 150 。

The width attribute defaults to 300, and the height attribute defaults to 150.

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