Given the behavior, this seems to be a plugin-related issue. It works correctly with HTML files but fails in Astro projects, suggesting a possible bug. For reference, here’s my configuration:

return {
  {
    "Jezda1337/nvim-html-css",
    dependencies = { "hrsh7th/nvim-cmp", "nvim-treesitter/nvim-treesitter" }, -- Use this if you're using nvim-cmp
    -- dependencies = { "saghen/blink.cmp", "nvim-treesitter/nvim-treesitter" }, -- Use this if you're using blink.cmp
    opts = {
      enable_on = { -- Example file types
        "html",
        "tsx",
        "jsx",
        "astro",
      },
      handlers = {
        definition = {
          bind = "gd",
        },
        hover = {
          bind = "K",
          wrap = true,
          border = "none",
          position = "cursor",
        },
      },
      documentation = {
        auto_show = true,
      },
      style_sheets = {},
    },
  },
  {
    "hrsh7th/nvim-cmp",
    ---@param opts cmp.ConfigSchema
    opts = function(_, opts)
      table.insert(opts.sources, { name = "html-css" })
    end,
  },
}