deleted dead code

style/about.css

@@ -1,13 +0,0 @@
-#about-link-btn {
-    background-color:aliceblue;
-    color:#f0f8ff;
-    border: none;
-    padding: 12px 24px;
-    border-radius: 8px;
-    cursor: pointer;
-    transition: box-shadow 0.3s ease;
-}
-
-#about-link-btn:hover {
-    box-shadow: 0 0 10px #02e3ff;
-}