style:修改样式

Author: SunLxy

core/src/styles/index.css

@@ -55,7 +55,7 @@
 .code-preview-layout .preview-code .preview-button-copy > .copy,
 .code-preview-layout .preview-code:hover .preview-button-copy-active > .check,
 .code-preview-layout .preview-code:hover .preview-button-copy {
-  display: inline-block;
+  display: flex;
 }
 
 .code-preview-layout .preview-button .preview-code-exand-unexpand-icon-false,
@@ -78,6 +78,7 @@
   top: 6px;
   display: none;
   opacity: 0.5;
+  border-radius: 3px;
 }
 
 .code-preview-layout .preview-code > pre {

website/src/index.css

@@ -11,6 +11,9 @@ fieldset .code-preview-layout .preview-code {
 .code-preview-layout .preview-button .preview-button-span {
   background-color: var(--color-button-span-bg);
 }
+.code-preview-layout .preview-code .preview-button-copy {
+  background-color: var(--color-button-span-bg);
+}
 body {
   margin: 0;
 }