bug fixes

src/components/CourseItem.vue

@@ -51,6 +51,7 @@ export default {
   display: flex;
   flex-direction: column;
   justify-content: space-between;
+  overflow: hidden;
 }
 .course-item-pic {
   width: 2.4rem;

src/components/FreeCourseItem.vue

@@ -46,6 +46,7 @@ export default {
   display: flex;
   flex-direction: column;
   justify-content: space-between;
+  overflow: hidden;
 }
 .course-item-pic {
   width: 2.4rem;

src/pages/search/index.vue

@@ -105,6 +105,9 @@ export default {
       this.$router.replace({ query: { tab: name, keywords: this.searchValue } })
     },
     onSearch() {
+      if (!this.searchValue.trim()) {
+        return
+      }
       this.$router.replace({
         query: { tab: this.tabActive, keywords: this.searchValue }
       })