Update docs (16460)

Signed-off-by: Nester.zhou <ester.zhou@huawei.com>

en/application-dev/reference/js-service-widget-ui/js-service-widget-basic-span.md

@@ -23,7 +23,7 @@ The [universal attributes](js-service-widget-common-attributes.md) are supported
 | Name| Type| Default Value| Mandatory| Description|
 | -------- | -------- | -------- | -------- | -------- |
 | color | <color> | - | No| Font color of the modified text.|
-| font-size | <length> | 30px | No| Font size of the modified text.|
+| font-size | <length> | 16px | No| Font size of the modified text.|
 | font-style | string | normal | No| Font style of the modified text. For details, see **font-style** of the [**\<text>**](js-service-widget-basic-text.md#styles) component.|
 | font-weight | number \| string | normal | No| Font weight of the modified text. For details, see **font-weight** of the [**\<text>**](js-service-widget-basic-text.md##styles) component.|
 | text-decoration | string | none | No| Text decoration of the modified text. For details, see **text-decoration** of the [**\<text>**](js-service-widget-basic-text.md#styles) component.|

en/application-dev/reference/js-service-widget-ui/js-service-widget-basic-text.md

@@ -25,7 +25,7 @@ In addition to the [universal styles](js-service-widget-common-styles.md), the f
 | Name| Type| Default Value| Mandatory| Description|
 | -------- | -------- | -------- | -------- | -------- |
 | color | <color> | - | No| Font color.|
-| font-size | <length> | 30px | No| Font size.|
+| font-size | <length> | 16px | No| Font size.|
 | letter-spacing | <length> | 0px | No| Character spacing (px).|
 | font-style | string | normal | No| Font style. Available values are as follows:<br>- **normal**: standard font style<br>- **italic**: italic font style|
 | font-weight | number \| string | normal | No| Font weight. For the number type, the value ranges from 100 to 900. The default value is 400. A larger value indicates a heavier font weight.<br>The value of the number type must be an integer multiple of 100.<br>The value of the string type can be **lighter**, **normal**, **bold**, or **bolder**.|