CSS Animation Properties

backgroundbackground-colorbackground-imagebackground-positionbackground-sizeborderborder-bottomborder-bottom-colorborder-bottom-left-radiusborder-bottom-right-radiusborder-bottom-widthborder-colorborder-imageborder-image-outsetborder-image-sliceborder-image-sourceborder-image-widthborder-leftborder-left-colorborder-left-widthborder-radiusborder-rightborder-right-colorborder-right-widthborder-spacingborder-topborder-top-colorborder-top-left-radiusborder-top-right-radiusborder-top-widthborder-widthbottombox-shadowclipclip-pathcolorcolumn-countcolumn-gapcolumn-rulecolumn-rule-colorcolumn-rule-widthcolumn-widthcolumnsfilterflexflex-basisflex-growflex-shrinkfontfont-sizegapgridgrid-auto-columnsgrid-column-gapgrid-gapgrid-row-gapgrid-templategrid-template-columnsgrid-template-rowsheightleftletter-spacingline-heightmarginmargin-bottommargin-leftmargin-rightmargin-topmask-imagemask-positionmask-sizemax-heightmax-widthmin-heightmin-widthobject-positionopacityoutlineoutline-coloroutline-offsetoutline-widthpaddingpadding-bottompadding-leftpadding-rightpadding-topperspectiveperspective-originrightrow-gaptext-decorationtext-decoration-colortext-decoration-thicknesstext-indenttext-shadowtoptransformtransform-originvertical-alignwidthword-spacingz-index

CSS border-bottom-color animation property


with the border-bottom-color property you can animate bottom border colour.

Values

This is the value you will use with border-bottom-color property

ValueDescription
colorSpecifies the color of the top border. Look at CSS Color Values for the list of possible color values.
transparentAllows the border to be transparent, though it may occupy the space set by the border-width property.

Example


@keyframes myAnimation {
   from {
      
border-bottom-color
 
color | transparent
   }
   to {
      
border-bottom-color
 
color | transparent
   }
}
@keyframes myAnimation {
   0% {
      
border-bottom-color
 
color | transparent
   }
   100% {
      
border-bottom-color
 
color | transparent
   }
}

References