[comp:button] abnormal style

[danranVm]

• I have searched the issues of this repository and believe that this is not a duplicate.

Reproduction link

764529c#diff-0e26fabb0af9bff4c170ca657e13172fb34172bfb522782e737e895b7839237cR127

Steps to reproduce

<IxButton danger icon="delete">Default</IxButton>

What is expected?

图标为红色

What is actually happening?

图标为灰色

Environment Info

beta.15

---

.ix-button-default:not(.ix-button-disabled):not(:hover):not(:focus):not(:active) .ix-icon {
    color: #5e6573;
}

这一行样式改动导致的。

[idux-bot]

Translation of this issue:

[Comp: Button] Abnormal Style

• I have searched the [issues] (https://github.com/iduxfe/idux/isSues) of this repository that this is not a duplicate.

REPRODUCTION LINK

STEPS To Reproduce

<IxButton danger icon="delete">Default</IxButton>

What is exfected?

The icon is red

What is actually happy?

The icon is gray

ENVIRONMENT Info

beta.15

---

.ix-button-default:not(.ix-button-disabled):not(:hover):not(:focus):not(:active) .ix-icon {
    color: #5e6573;
}

这一行样式改动导致的。