diff --git a/venketeswar rana/issue no.12/index.html b/venketeswar rana/issue no.12/index.html
new file mode 100644
index 00000000..1adcf986
--- /dev/null
+++ b/venketeswar rana/issue no.12/index.html
@@ -0,0 +1,46 @@
+
+
+
+
+
+
+ side navigation bar
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/venketeswar rana/issue no.12/style.css b/venketeswar rana/issue no.12/style.css
new file mode 100644
index 00000000..058a9c06
--- /dev/null
+++ b/venketeswar rana/issue no.12/style.css
@@ -0,0 +1,85 @@
+* {
+ margin: 0;
+ padding: 0;
+ box-sizing: border-box;
+ font-family: "Poppins", sans-serif;
+}
+
+.header {
+ width: 100%;
+ height: 100vh;
+ background: #f1f1dc;
+}
+
+.side-nav {
+ width: 250px;
+ height: 100%;
+ background: rgb(178, 239, 239);
+ position: fixed;
+ top: 0;
+ left: 0;
+ padding: 20px 30px;
+}
+
+
+.nav-links {
+ list-style: none;
+ position: relative;
+}
+
+.nav-links li {
+ padding: 10px 0;
+}
+
+.nav-links li a {
+ color: #000000;
+ text-decoration: none;
+ padding: 10px 14px;
+ display: flex;
+ align-items: center;
+}
+
+.nav-links li a i {
+ font-size: 22px;
+ margin-right: 20px;
+}
+
+.active {
+ background: #000000;
+ width: 100%;
+ height: 47px;
+ position: absolute;
+ left: 0;
+ top: 2.6%;
+ z-index: -1;
+ border-radius: 6px;
+ box-shadow: 0 5px 10px rgba(255, 255, 255, 0.4);
+ display: none;
+ transition: top 0.5s;
+}
+
+.nav-links li:hover a {
+ color: #fff;
+ transition: 0.3s;
+}
+
+.nav-links li:hover~.active {
+ display: block;
+}
+
+.nav-links li:nth-child(1):hover~.action {
+ top: 2.6%;
+}
+
+.nav-links li:nth-child(2):hover~.action {
+ top: 30.2%;
+}
+
+.nav-links li:nth-child(3):hover~.action {
+ top: 50.8%;
+}
+
+.nav-links li:nth-child(4):hover~.action {
+ top: 78.4%;
+}
+