fix: button style in cover page

Author: QingWei-Li

CHANGELOG.md

@@ -1,3 +1,8 @@
+## 2.0.2
+
+### Bug fixes
+- fix button style in cover page.
+
 ## 2.0.1
 ### Bug fixes
 - border style.

src/themes/basic/_coverpage.css

@@ -73,8 +73,8 @@ section.cover {
   .cover-main p:last-child a {
     border-radius: 2em;
     border-width: 1px;
-    border-style:  solid;
-    border-width: var(--theme-color, $color-primary);
+    border-style: solid;
+    border-color: var(--theme-color, $color-primary);
     box-sizing: border-box;
     color: var(--theme-color, $color-primary);
     font-size: 1.05em;