Refine the tables.

doc/howto/usage/cmd_parameter/arguments_cn.md

@@ -63,7 +63,7 @@
 </tr>
 
 <tr>
-<td class="left" rowspan="15">训练</td><td class="left">dot_period</td>
+<td class="left" rowspan="14">训练</td><td class="left">dot_period</td>
 <td class="left">√</td><td class="left">√</td><td class="left"></td><td class="left"></td>
 </tr>
 

doc/mobile/cross_compiling_for_android_cn.md

@@ -20,10 +20,31 @@ $ docker build -t username/paddle-android:dev . -f Dockerfile.android
 构建好开发镜像后，即可使用开发镜像来编译Android版PaddlePaddle C-API库。
 Android的Docker开发镜像向用户提供两个可配置的参数：
 
-<table>
-<tr><th>Argument</th><th>Optional Values</th><th>Default</th></tr>
-<tr><td>ANDROID_ABI</td><td>armeabi-v7a, arm64-v8a</td><td>armeabi-v7a</td></tr>
-<tr><td>ANDROID_API</td><td>>= 21</td><td>21</td></tr>
+<table class="docutils">
+<colgroup>
+  <col width="25%" />
+  <col width="50%" />
+  <col width="25%" />
+</colgroup>
+<thead valign="bottom">
+  <tr class="row-odd">
+  <th class="head">Argument</th>
+  <th class="head">Optional Values</th>
+  <th class="head">Default</th>
+</tr>
+</thead>
+<tbody valign="top">
+  <tr class="row-even">
+  <td>ANDROID_ABI</td>
+  <td>armeabi-v7a, arm64-v8a</td>
+  <td>armeabi-v7a</td>
+</tr>
+<tr class="row-odd">
+  <td>ANDROID_API</td>
+  <td>>= 21</td>
+  <td>21</td>
+</tr>
+</tbody>
 </table>
 
 - 编译`armeabi-v7a`，`Android API 21`的PaddlePaddle库

doc/mobile/cross_compiling_for_android_en.md

@@ -26,10 +26,31 @@ $ docker run -it --rm -v $PWD:/paddle -e "ANDROID_ABI=armeabi-v7a" -e "ANDROID_A
 
 The Docker image accepts two arguments `ANDROID_ABI` and `ANDROID_API`:
 
-<table>
-<tr><th>Argument</th><th>Optional Values</th><th>Default</th></tr>
-<tr><td>ANDROID_ABI</td><td>armeabi-v7a, arm64-v8a</td><td>armeabi-v7a</td></tr>
-<tr><td>ANDROID_API</td><td>>= 21</td><td>21</td></tr>
+<table class="docutils">
+<colgroup>
+  <col width="25%" />
+  <col width="50%" />
+  <col width="25%" />
+</colgroup>
+<thead valign="bottom">
+  <tr class="row-odd">
+  <th class="head">Argument</th>
+  <th class="head">Optional Values</th>
+  <th class="head">Default</th>
+</tr>
+</thead>
+<tbody valign="top">
+  <tr class="row-even">
+  <td>ANDROID_ABI</td>
+  <td>armeabi-v7a, arm64-v8a</td>
+  <td>armeabi-v7a</td>
+</tr>
+<tr class="row-odd">
+  <td>ANDROID_API</td>
+  <td>>= 21</td>
+  <td>21</td>
+</tr>
+</tbody>
 </table>
 
 The ARM-64 architecture (`arm64-v8a`) requires at least level 21 of Android API.

doc/mobile/cross_compiling_for_ios_cn.md

@@ -27,11 +27,28 @@ iOS平台可选配置参数：
   - `SIMULATOR`，构建目标为`x86`架构的模拟器平台。
 - `IOS_ARCH`，目标架构。针对不同的`IOS_PLATFORM`，可设置的目标架构如下表所示：
 
-<table>
-<tr><th>IOS_PLATFORM</th><th>IOS_ARCH</th></tr>
-<tr><td>OS</td><td>armv7, armv7s, arm64 (默认)</td></tr>
-<tr><td>SIMULATOR</td><td>i386, x86_64 (默认)</td></tr>
-</table>
+    <table class="docutils">
+    <colgroup>
+      <col width="35%" />
+      <col width="65%" />
+    </colgroup>
+    <thead valign="bottom">
+      <tr class="row-odd">
+      <th class="head">IOS_PLATFORM</th>
+      <th class="head">IOS_ARCH</th>
+    </tr>
+    </thead>
+    <tbody valign="top">
+      <tr class="row-even">
+      <td>OS</td>
+      <td>armv7, armv7s, arm64 (默认)</td>
+    </tr>
+    <tr class="row-odd">
+      <td>SIMULATOR</td>
+      <td>i386, x86_64 (默认)</td>
+    </tr>
+    </tbody>
+    </table>
 
 - `IOS_DEPLOYMENT_TARGET`，最小的iOS部署版本，默认值为`7.0`。
 - `IOS_ENABLE_BITCODE`，是否使能[Bitcode](https://developer.apple.com/library/content/documentation/IDEs/Conceptual/AppDistributionGuide/AppThinning/AppThinning.html#//apple_ref/doc/uid/TP40012582-CH35-SW3)，可设置`ON/OFF`，默认值为`ON`。