Css chrome的最大z索引值

在Chrome中，当我将z-index设置为2147483647时，它将更改为1e+06。。chrome的最大可能值是多少

.css（'z-index''999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999

---

变为

1e+308

。如果在变成“inf”后再添加一个数字。

作为32位浏览器，您会找到最高值

2147483648=2^31它是2147483647（0x7fffffff）

根据WebKit的源代码，“zIndex”自第一次提交以来一直是一个“int”值：

在Chrome35（32位）、45（64位）、74（64位）（适用于Windows）上的测试证实了这一点

我还测试了Firefox66，zIndex的最大值也是2147483647

注:

• WebKit:Chrome（Chrome）曾经使用它来渲染网页，几年前它被重命名为“blink”，并集成到Chrome中