diff --git a/wd-cp-1/ArpitDubey_Webdevelopment/ArpitDubey_WD_Introtocss.md b/wd-cp-1/ArpitDubey_Webdevelopment/ArpitDubey_WD_Introtocss.md
index eadbc2c..ad56707 100644
--- a/wd-cp-1/ArpitDubey_Webdevelopment/ArpitDubey_WD_Introtocss.md
+++ b/wd-cp-1/ArpitDubey_Webdevelopment/ArpitDubey_WD_Introtocss.md
@@ -13,16 +13,20 @@ font properties such as typeface and emphasis,
-
-> - ***CSS2*** CSS level 2 specification was developed by the W3C and published as a recommendation in May 1998.
+> - ***CSS2***
+> CSS level 2 specification was developed by the W3C and published as a recommendation in May 1998.
A superset of CSS 1, CSS 2 includes a number of new capabilities like absolute, relative, and fixed positioning of elements and z-index,
the concept of media types, support for aural style sheet and bidirectional text, and new font properties such as shadows.
-> - ***CSS2.1*** CSS level 2 revision 1, often referred to as "CSS 2.1", fixes errors in CSS 2, removes poorly supported or not fully interoperable
+
+
+> - ***CSS2.1***
+> CSS level 2 revision 1, often referred to as "CSS 2.1", fixes errors in CSS 2, removes poorly supported or not fully interoperable
features and adds already implemented browser extensions to the specification.It was published as a W3C Recommendation on 7 June 2011.
CSS 2.1 was planned as the first and final revision of level 2—but low priority work on CSS 2.2 began in 2015.
-> - ***CSS3*** Unlike CSS 2, which is a large single specification defining various features, CSS 3 is divided into several separate documents called
+> - ***CSS3***
+> Unlike CSS 2, which is a large single specification defining various features, CSS 3 is divided into several separate documents called
"modules". Each module adds new capabilities or extends features defined in CSS 2, preserving backward compatibility. Work on CSS level 3 started
around the time of publication of the original CSS 2 recommendation. The earliest CSS 3 drafts were published in June 1999.