Get attribute from XML

I don’t get it how to use XSL.

I have this XML

Forma 1.png

And I want to get the attributes of position and Width/Height. using value-of select

I only get “Forma 1.png” so it must be another element for this, or something.

fixed with this:

<xsl:value-of select="@position"/>,<xsl:value-of select="@layerwidth"/>,<xsl:value-of select="@layerheight"/>,