Two methods to make the text box input content prompt disappear_javascript skills

The first method:
Based on the new feature of HTML5 input tag - placeholder. In addition, the x-webkit-speech attribute can implement the voice input function.

Copy code The code is as follows:

Second method :
Use span to simulate, position span, and use JS keyboard events determine input and determine whether the content in the span is displayed or hidden.

Copy code The code is as follows:

.org/1999/xhtml">








< ;form class="border_radius" id="focus">

The focus prompt disappears

Petal registration email
Password

The input prompt disappears< ;/h2>
Petals registration email
< label>password