My code is this, I tried different codes but not works.

.tabbrowser-tab::after::last-child{
    content: "" !important;
    display: block;
    height: var(--tab-height-personal) !important;
    width: 130px !important;
    border-bottom: 1px solid blue !important;
    border-image: var(--panel-separator-zap-gradient2) 1 !important;
}
  • @GodieOP
    2•7 months ago

    Thanks for the explanation, you are a genius. I will use this:

    .tabbrowser-tab:last-of-type::after{..}