fix: add an example of markdown embedded in the form #138

src/components/Transition/src/ExpandTransition.vue

@@ -59,6 +59,8 @@
             if (el.scrollHeight !== 0) {
               // for safari: add class after set height, or it will jump to zero height suddenly, weired
               addClass(el, 'collapse-transition');
+              // in vue3.0.4, transitionProperty is set 'none' to avoid 'v-leave-from' issue
+              el.style.transitionProperty = 'height';
               el.style.height = 0;
               el.style.paddingTop = 0;
               el.style.paddingBottom = 0;