• Hello!
    wp-dtree is used for a long time.
    I am doing work towards speedy loading of my site.
    empty.gif and nolines_plus.gif were pointed out as a result of measuring by Gtmetrix.
    The contents are “Specify image dimensions“.
    In response, what was described to style.css or min.css of plug-in is not reflected.
    What kind of edit is carried out to which file?
    Thank you for your consideration.

    http://wordpress.org/plugins/wp-dtree-30/

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