Update syntax for white-space (#2884)

Author: skyclouds2001

live-examples/css-examples/text/white-space.html

@@ -6,31 +6,37 @@
     </button>
   </div>
   <div class="example-choice">
-    <pre><code class="language-css">white-space: nowrap;</code></pre>
+    <pre><code class="language-css">white-space: pre;</code></pre>
     <button type="button" class="copy hidden" aria-hidden="true">
       <span class="visually-hidden">Copy to Clipboard</span>
     </button>
   </div>
   <div class="example-choice">
-    <pre><code class="language-css">white-space: pre;</code></pre>
+    <pre><code class="language-css">white-space: pre-wrap;</code></pre>
     <button type="button" class="copy hidden" aria-hidden="true">
       <span class="visually-hidden">Copy to Clipboard</span>
     </button>
   </div>
   <div class="example-choice">
-    <pre><code class="language-css">white-space: pre-wrap;</code></pre>
+    <pre><code class="language-css">white-space: pre-line;</code></pre>
     <button type="button" class="copy hidden" aria-hidden="true">
       <span class="visually-hidden">Copy to Clipboard</span>
     </button>
   </div>
   <div class="example-choice">
-    <pre><code class="language-css">white-space: pre-line;</code></pre>
+    <pre><code class="language-css">white-space: wrap;</code></pre>
+    <button type="button" class="copy hidden" aria-hidden="true">
+      <span class="visually-hidden">Copy to Clipboard</span>
+    </button>
+  </div>
+  <div class="example-choice">
+    <pre><code class="language-css">white-space: collapse;</code></pre>
     <button type="button" class="copy hidden" aria-hidden="true">
       <span class="visually-hidden">Copy to Clipboard</span>
     </button>
   </div>
   <div class="example-choice">
-    <pre><code class="language-css">white-space: break-spaces;</code></pre>
+    <pre><code class="language-css">white-space: preserve nowrap;</code></pre>
     <button type="button" class="copy hidden" aria-hidden="true">
       <span class="visually-hidden">Copy to Clipboard</span>
     </button>