为提升您的使用体验,本站正在维护,部分功能暂时无法使用。如果本站文章无法解决您的问题,您想要向社区提问的话,请到 Twitter 上的 @FirefoxSupport 或 Reddit 上的 /r/firefox 提问,我们的支持社区将会很快回复您的疑问。

搜索 | 用户支持

防范以用户支持为名的诈骗。我们绝对不会要求您拨打电话或发送短信,及提供任何个人信息。请使用“举报滥用”选项报告涉及违规的行为。

详细了解

placeholder/css pseudo elements on data picker

  • 2 个回答
  • 1 人有此问题
  • 3 次查看
  • 最后回复者为 offbeatmammal

more options

Sadly the HTML spec doesn't allow for the placeholder attribute on an <input type='date'...> field, so we have to find workarounds.

In Chrome, and Safari (iOS only, macOS has it's own issues) the hack following works (though annoyingly shws both palceholder and a truncated date picker), but the selector seems to be ignored in Firefox so we see the datepicker but no placeholder.

   <style>
       input[type='date']:before {
           content: attr(placeholder)
         }
   </style>
   <input type="date" name="dob" placeholder="Date of Birth " onfocus="this.placeholder=''" onblur="if (this.value==''){this.placeholder='Date of Birth '}">
   
   

I am hoping I'm just being dumb and missing something obvious, but any pointers are welcome ;)

Sadly the HTML spec doesn't allow for the placeholder attribute on an <input type='date'...> field, so we have to find workarounds. In Chrome, and Safari (iOS only, macOS has it's own issues) the hack following works (though annoyingly shws both palceholder and a truncated date picker), but the selector seems to be ignored in Firefox so we see the datepicker but no placeholder. <style> input[type='date']:before { content: attr(placeholder) } </style> <input type="date" name="dob" placeholder="Date of Birth&nbsp;" onfocus="this.placeholder=&#39;&#39;" onblur="if (this.value==&#39;&#39;){this.placeholder='Date of Birth&nbsp;'}"> I am hoping I'm just being dumb and missing something obvious, but any pointers are welcome ;)

由offbeatmammal于修改

所有回复 (2)

more options

Where is the placeholder supposed to appear? When I use your input tag, the control is filled with mm/dd/yyyy so there isn't any room for text to appear.

more options

I would like it in place of the dd/mm/yyyy as that conveys no information to the user as to what the field is going to contain. Ideal outcome would be for the placeholder to be replaced by the dd/mm/yyyy text when the field gets focus as then we get the benefit of the placeholder and the formatting hint when the user actually goes to enter data

with the hack above I can have both placeholder and the format hint in Chrome (or just the placeholder on iOS/Android, as there's no keyboard option, just the date picker pop-up)

see https://stackoverflow.com/questions/20321202/not-showing-placeholder-for-input-type-date-field/23683687#23683687