feat: adjust table css style

Author: yuicer

packages/vuepress-theme-yuicer/styles/index.styl

@@ -158,15 +158,19 @@ table
   display: block;
   overflow-x: auto;
 
-tr
-  border-top: 1px solid #dfe2e5;
+  thead
+    background: #8a95ab;
 
-  &:nth-child(2n)
-    background-color: #f6f8fa;
+  tr
+    background: #ffffff55;
+    border-top: 1px solid #dfe2e5;
 
-th, td
-  border: 1px solid #dfe2e5;
-  padding: 0.6em 1em;
+    &:nth-child(2n)
+      background-color: #ffffffcc;
+
+    th, td
+      border: 1px solid #97aabd;
+      padding: 0.6em 1em;
 
 .theme-container
   padding: 3.6rem 0;