Merge branch 'master' of github.com:webcoding/cnBootstrap

Author: cloudAi

cnDocs/solutions/rgba-opacity.html

@@ -223,6 +223,19 @@ <h3>最新式的半透明效果实现</h3>
                 <i>具有半透明背景的文字，文字过长也不要紧的哦，布局良好！</i>
             </a>
         </div>
+        <div class="rgbabox">
+            <p>全兼容半透明测试，五种颜色及透明度。设置背景图片作为陪衬对比，增强浏览效果。</p>
+            <span class="rbox"></span>
+            <span class="rbox"></span>
+            <span class="rbox"></span>
+            <span class="rbox"></span>
+            <span class="rbox"></span>
+            <span class="box1">颜色：白<br>透明度：.8</span>
+            <span class="box2">颜色：黑<br>透明度：.5</span>
+            <span class="box3">颜色：红<br>透明度：.4</span>
+            <span class="box4">颜色：绿<br>透明度：.3</span>
+            <span class="box5">颜色：蓝<br>透明度：.2</span>
+        </div>
     </div>
 <pre class="prettyprint linenums">
 .text-cover {