✨ [Feature]: tiny-input 边框设成0，无效

[zhouxiaobai518]

What problem does this feature solve

What does the proposed API look like

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test

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Title: ✨ [Feature]: tiny-input border is set to 0, invalid

[shenjunjian]

原因： .tiny-input 这一层本来就没有边框。 可见的边框是加在 内部元素上的：

办法： 可以通过 .demo-input .tiny-input__inner { .......... } 来覆盖样式。

建议： 不建议你覆盖组件样式