diff --git a/assets/stylesheets/issue_age.css b/assets/stylesheets/issue_age.css
index c59f893..093b8a5 100755
--- a/assets/stylesheets/issue_age.css
+++ b/assets/stylesheets/issue_age.css
@@ -2,4 +2,6 @@
 .line2 { stroke: #507AAA !important; } .fill2 { fill: #BACCE0 !important; } .key2 { fill: #507AAA !important; }
 
 .fill1, .fill2 { fill-opacity: 0.6 !important; }
-.line1, .line2 { stroke-width: 2px !important; }
\ No newline at end of file
+.line1, .line2 { stroke-width: 2px !important; }
+
+.guideLines { stroke-opacity: 0.2 !important; }
\ No newline at end of file
diff --git a/assets/stylesheets/issue_growth.css b/assets/stylesheets/issue_growth.css
index e96a0d8..2ee7edc 100755
--- a/assets/stylesheets/issue_growth.css
+++ b/assets/stylesheets/issue_growth.css
@@ -6,4 +6,6 @@
 .line6 { stroke: #C0C !important; } .fill6 { fill: #C0C !important; } .key6 { fill: #C0C !important; }
 
 .fill1, .fill2, .fill3, .fill4, .fill5, .fill6 { fill-opacity: 0.6 !important; }
-.line1, .line2, .line3, .line4, .line5, .line6 { stroke-width: 2px !important; }
\ No newline at end of file
+.line1, .line2, .line3, .line4, .line5, .line6 { stroke-width: 2px !important; }
+
+.guideLines { stroke-opacity: 0.2 !important; }
\ No newline at end of file
diff --git a/assets/stylesheets/target_version.css b/assets/stylesheets/target_version.css
index 9bc240c..50b3233 100755
--- a/assets/stylesheets/target_version.css
+++ b/assets/stylesheets/target_version.css
@@ -9,3 +9,5 @@
 .dataPoint1, .dataPoint2 { display: none !important; }
 .dataPoint3 { stroke: #AA5050 !important; stroke-width: 10px !important; }
 .key3 { fill: #AA5050 !important; }
+
+.guideLines { stroke-opacity: 0.2 !important; }
\ No newline at end of file