Responsive Classic CSS - Mostly duplicate line removal

[TMCSherpa]

Mostly duplicate line removal PR split part from #6747

[TMCSherpa]

Just so everyone is on the same page, here is a crappy script fusion of what I did
START
#!/bin/bash

cat ./css/stylesheet.css |grep "\S" |paste -s -d ''|tr -s '[:space:]'|sed 's/,\s/,/g '|sed 's/\s,/,/g'|sed 's/\s{/{/g'|sed 's/}\s/}/g'|sed 's/}/}\n/g'|sed 's//*.**///'> ./stylesheet_copy.txt
cat stylesheet_copy.txt| sed 's#{#,\n{#g' > stylesheet_split.txt
cat stylesheet_split.txt |grep { > stylesheet_properties.txt
cat stylesheet_split.txt |grep -v { > stylesheet_elements.txt
rm stylesheet_copy.txt
rm stylesheet_split.txt

x=1
while IFS= read -r line; do
sed -n "$x p" stylesheet_elements.txt|sed "s&,&$line\n&g"|grep "\S" >> stylesheet_per_line.txt
x=$(( $x + 1 ))
done < stylesheet_properties.txt
rm stylesheet_properties.txt
rm stylesheet_elements.txt

cat stylesheet_per_line.txt |sed 's/{.*}//'|sort -u > stylesheet_diff_list.txt

x=1
while IFS= read -r line; do
echo "working on "$line
echo -e "\t" $line >> stylesheet_dup.txt
cat stylesheet_per_line.txt |grep ^"$line"{ >> stylesheet_dup.txt
echo >> stylesheet_dup.txt
x=$(( $x + 1 ))
done < stylesheet_diff_list.txt
rm stylesheet_diff_list.txt
rm stylesheet_per_line.txt

cat ./css/stylesheet_colors.css |grep "\S" |paste -s -d ''|tr -s '[:space:]'|sed 's/,\s/,/g '|sed 's/\s,/,/g'|sed 's/\s{/{/g'|sed 's/}\s/}/g'|sed 's/}/}\n/g'|sed 's//*.**///'> ./stylesheet_colors_copy.txt
cat stylesheet_colors_copy.txt| sed 's#{#,\n{#g' > stylesheet_colors_split.txt
cat stylesheet_colors_split.txt |grep { > stylesheet_colors_properties.txt
cat stylesheet_colors_split.txt |grep -v { > stylesheet_colors_elements.txt
rm stylesheet_colors_copy.txt
rm stylesheet_colors_split.txt

x=1
while IFS= read -r line; do
sed -n "$x p" stylesheet_colors_elements.txt|sed "s&,&$line\n&g"|grep "\S" >> stylesheet_colors_per_line.txt
x=$(( $x + 1 ))
done < stylesheet_colors_properties.txt
rm stylesheet_colors_properties.txt
rm stylesheet_colors_elements.txt

cat stylesheet_colors_per_line.txt |sed 's/{.*}//'|sort -u > stylesheet_colors_diff_list.txt

x=1
while IFS= read -r line; do
echo "working on "$line
echo -e "\t" $line >> stylesheet_colors_dup.txt
cat stylesheet_colors_per_line.txt |grep ^"$line"{ >> stylesheet_colors_dup.txt
echo >> stylesheet_colors_dup.txt
x=$(( $x + 1 ))
done < stylesheet_colors_diff_list.txt
rm stylesheet_colors_diff_list.txt
rm stylesheet_colors_per_line.txt
END

run it in the responsive_clasic folder and look for blocks of lines

from stylesheet
#mainWrapper
#mainWrapper{text-align:left;width:100%;vertical-align:top;}
#mainWrapper{margin:0;padding:0;}
#mainWrapper{margin:auto;} <- overrides margin:0
#mainWrapper{} <- plenty of #mainWrapper lines, does this need to be here?

from stylesheet_colors
#mainWrapper
#mainWrapper{background:#fff;} <- these are both on line 36 for some reason
#mainWrapper{background:#fff;}
#mainWrapper{background:#f4f4f4;} <- line 37 overrides (both) #fff