init

public/frontend/layui-main/docs/dropdown/examples/align.md

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+<div class="layui-btn-container">
+  <button class="layui-btn layui-btn-primary demo-dropdown-align" lay-options="{}">
+    左对齐
+    <i class="layui-icon layui-icon-down layui-font-12"></i>
+  </button>
+  <button class="layui-btn layui-btn-primary demo-dropdown-align" lay-options="{align: 'center'}">
+    居中对齐
+    <i class="layui-icon layui-icon-down layui-font-12"></i>
+  </button>
+  <button class="layui-btn layui-btn-primary demo-dropdown-align" lay-options="{align: 'right'}">
+    右对齐
+    <i class="layui-icon layui-icon-down layui-font-12"></i>
+  </button>
+</div>
+
+<!-- import layui --> 
+<script>
+layui.use(function(){
+  var dropdown = layui.dropdown;
+
+  // 水平对齐方式
+  dropdown.render({
+    elem: '.demo-dropdown-align',
+    // align: 'center' // align 已配置在元素 `lay-options` 属性上
+    data: [{
+      title: 'menu item test 111',
+      id: 100
+    },{
+      title: 'menu item test 222',
+      id: 101
+    },{
+      title: 'menu item test 333',
+      id: 102
+    }]
+  });
+  
+});
+</script>