fix: styles (#2990)

Author: Chasen-Zhang

src/components/TryCloudCard/styles.module.scss

@@ -1,5 +1,5 @@
 .card {
-  background-color: var( --ifm-try-card-free);
+  background-color: var(--ifm-try-card-free);
   border-radius: 8px;
   margin-bottom: 12px;
   padding: 1rem;
@@ -9,7 +9,7 @@
   color: var(--color-text-0);
   @media only screen and (max-width: 1110px) {
     display: none;
-   } 
+  }
   &.zh {
     .header h6 {
       font-size: 13px;
@@ -24,7 +24,7 @@
     display: flex;
     justify-content: flex-start;
     padding-right: 28px;
-    h6{
+    h6 {
       font-size: 14px;
       font-weight: 600;
       line-height: 1.3;
@@ -59,8 +59,8 @@
   }
   .close {
     position: absolute;
-    right: 0;
-    top: 2px;
+    right: -6px;
+    top: -6px;
     cursor: pointer;
     opacity: 0.7;
   }