[JavaScript] How to click the input box (get focus) in HTML to display the effect that disappears by default

Source: Internet
Author: User

When writing HTML, you may need to enter a prompt in the input box, that is, when you click the text box, the prompt will automatically disappear.

For example, in the following scenario, a simple default prompt is displayed:

It is very troublesome to click the input. You need to delete the prompt.

In HTML, how does one make the default prompt disappear after clicking the input box (that is, getting the focus) and preparing the input?

The Code is as follows:

<HTML> 

Of course, JavaScript scripts can be used to better control the input response events, provided that the jquery. js script file is introduced:

<HTML> 

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