fix #5135

src/components/divider/divider.vue

@@ -42,6 +42,7 @@
                     `${prefixCls}`,
                     `${prefixCls}-${this.type}`,
                     {
+                        [`${prefixCls}-with-text`]: this.hasSlot && this.orientation === 'center',
                         [`${prefixCls}-with-text-${this.orientation}`]: this.hasSlot,
                         [`${prefixCls}-dashed`]: !!this.dashed
                     }

src/styles/components/divider.less

@@ -18,6 +18,7 @@
         display: block;
         height: 1px;
         width: 100%;
+        min-width: 100%;
         margin: 24px 0;
         clear: both;
     }