fix: js error

snippets/height-transition.md

@@ -58,7 +58,7 @@ el.style.setProperty('--max-height', height + 'px')
 </style>
 
 <script>
-(function () {
+;(function () {
   var el = document.querySelector('.snippet-demo__height-transition__el')
   var height = el.scrollHeight
   el.style.setProperty('--max-height', height + 'px')

snippets/mouse-cursor-gradient-tracking.md

@@ -105,7 +105,7 @@ btn.onmousemove = function(e) {
 </style>
 
 <script>
-(function () {
+;(function () {
   var btn = document.querySelector('.snippet-demo__mouse-cursor-gradient-tracking')
   btn.onmousemove = function (e) {
     var x = e.pageX - btn.offsetLeft - btn.offsetParent.offsetLeft