fix: correct mozilla card centering issue

assets/css/landing.css

@@ -139,7 +139,7 @@
     /* min-height: calc(50% - 20px); */
     min-height: 110px;
     padding: 10px 10px 5px 10px;
-    text-align: -webkit-center;
+    text-align: center;
     transition: height var(--animation-time) linear, border-color var(--animation-time) linear;
     background-color: white;
     font-size: 15px;