When the select component scrolls down, the text color in the drop-down list will deepen #6177
Description
- I have searched the issues of this repository and believe that this is not a duplicate.
Version
1.7.7
Environment
chrome last 2 versions
Reproduction link
Steps to reproduce
1.select点开下拉，鼠标滚动；
2.下拉列表文字会出现文字从灰色变黑色加粗的情况；（非必然出现，需尝试多次滚动）
What is expected?
下列列表滚动时，文字颜色不出现变化
What is actually happening?
下列列表滚动时，文字颜色会出现变化