Added Hover Effect for the subscribe to newsletter button (#475)

* added subscribe to newsletter

* Added subscribe on linkedin

* Added subscribe on linkedin below about us

* Added hover effect for subscribe on linkedin button

Author: Saipradyumnagoud

index.html

@@ -523,6 +523,23 @@ <h6>Quick Links</h6>
     background-color: #0A66C2;
     font-family: "SF Pro Text", Helvetica, sans-serif;
   }
+  .libutton:hover{
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+    padding: 7px;
+    text-align: center;
+    outline: none;
+    text-decoration: none ;
+    color: #0A66C2 ;
+    width: 200px;
+    height: 32px;
+    border-radius: 16px;
+    background-color: black;
+    
+    border-color: #0A66C2;
+    font-family: "SF Pro Text", Helvetica, sans-serif;
+  }
 </style>
 <hr style="border-top: 1px solid black;">