Managing a KML Linestring properties - kml

Question

I am plotting a LineString. For some reason, I don't seem to effect the LineStyle. My code looks identical to many examples but no matter what color or width I place in the LineStyle, it always comes out as a thick blue line.
<?xml version="1.0" encoding="utf-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
<Document>
<name>Qtr Min Grid Maker</name>
<LookAt>
<longitude>-121.5</longitude>
<latitude>38</latitude>
<altitude>0</altitude>
<range>740933.8825924395</range>
<tilt>0</tilt>
<heading>0</heading>
</LookAt>
<Folder>
<name>Grids</name>
<Style id="linestyle1">
<LineStyle>
<color>7f0000ff</color>
<width>1</width>
<gx:labelVisibility>1</gx:labelVisibility>
</LineStyle>
</Style>
<Placemark>
<name>QTR</name>
<visibility>0</visibility>
<open>1</open>
<styleUrl>#linestyle1</styleUrl>
<LineString>
<coordinates>
-124.75,40,0
-124.5,40,0
-124.25,40,0
-124,40,0
-123.75,40,0
-123.5,40,0
-123.25,40,0
-123,40,0
</coordinates>
</LineString>
</Placemark>
</Folder>
</Document>
</kml>

Answer 1

It works for me if I move the shared styles to the top level (inside the <Document> tag):
example
From the documentation (see the description of <StyleSelector>):
A style defined within a Feature is called an "inline style" and
applies only to the Feature that contains it. A style defined as the
child of a <Document> is called a "shared style." A shared style must
have an id defined for it. This id is referenced by one or more
Features within the <Document>.
Yours is neither a child of <Document> nor within a <Placemark>
<?xml version="1.0" encoding="utf-8"?>
<kml xmlns="http://www.opengis.net/kml/2.2">
<Document>
<Style id="linestyle1">
<LineStyle>
<color>7f0000ff</color>
<width>1</width>
<gx:labelVisibility>1</gx:labelVisibility>
</LineStyle>
</Style>
<name>Qtr Min Grid Maker</name>
<LookAt>
<longitude>-121.5</longitude>
<latitude>38</latitude>
<altitude>0</altitude>
<range>740933.8825924395</range>
<tilt>0</tilt>
<heading>0</heading>
</LookAt>
<Folder>
<name>Grids</name>
<Placemark>
<name>QTR</name>
<visibility>0</visibility>
<open>1</open>
<styleUrl>#linestyle1</styleUrl>
<LineString>
<coordinates>
-124.75,40,0
-124.5,40,0
-124.25,40,0
-124,40,0
-123.75,40,0
-123.5,40,0
-123.25,40,0
-123,40,0
</coordinates>
</LineString>
</Placemark>
</Folder>
</Document>
</kml>