The overlapping border of the WeChat applet becomes wider
CSS solves the problem of vertically arranged borders superimposed and thickened
Solution:
Add margin-left:-mpx; (m indicates the size of the border) to both the first and second boxes, so that the two borders overlap and will not appear to have a bold effect.
border-width: 3rpx;
margin-top: -1rpx;
That's it.