fix: [#45][#48]different height

Author: ddchef

example/src/corners.vue

@@ -3,26 +3,25 @@
     href="https://github.com/ddchef/vue-code-diff"
     class="github-corner"
     aria-label="View source on GitHub"
-    ><svg
-      width="80"
-      height="80"
-      viewBox="0 0 250 250"
-      style="fill: #64ceaa; color: #fff; position: absolute; top: 0; border: 0; right: 0;"
-      aria-hidden="true"
-    >
-      <path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path>
-      <path
-        d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2"
-        fill="currentColor"
-        style="transform-origin: 130px 106px;"
-        class="octo-arm"
-      ></path>
-      <path
-        d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z"
-        fill="currentColor"
-        class="octo-body"
-      ></path></svg
-  ></a>
+  ><svg
+    width="80"
+    height="80"
+    viewBox="0 0 250 250"
+    style="fill: #64ceaa; color: #fff; position: absolute; top: 0; border: 0; right: 0;"
+    aria-hidden="true"
+  >
+    <path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z" />
+    <path
+      d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2"
+      fill="currentColor"
+      style="transform-origin: 130px 106px;"
+      class="octo-arm"
+    />
+    <path
+      d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z"
+      fill="currentColor"
+      class="octo-body"
+    /></svg></a>
 </template>
 <style>
 .github-corner:hover .octo-arm {

src/lib/code-diff/index.vue

@@ -127,7 +127,7 @@ export default {
 }
 
 .d2h-wrapper .d2h-code-side-emptyplaceholder {
-  max-height: 17px;
+  max-height: 19px;
 }
 
 .d2h-wrapper .d2h-code-side-line,