Bootstrap pop-up instance code [recommended] In the login box with validity check, and bootstrap Validity

Bootstrap pop-up instance code [recommended] In the login box with validity check, and bootstrap Validity

Recently, a project involves access control. When you access a page or function that requires logon, the logon box is displayed:

The effect is as follows:

Figure 1-if you click a user name, the logon dialog box is displayed if you do not log on.

A detailed description of this function:

The logon box is hidden when logon is not involved.

When Logon is involved, the logon dialog box appears in the upper left corner of the page.

The logon box is hidden after login is successful.

Implementation ideas:

Insert the logon div before the body end tag and set it to absolute. The position is in the upper left corner.

The default display attribute of the logon box is none. When a logon is triggered, change this attribute to block.

Attached sample code:

<! DOCTYPE html> 
A method that fully uses AngularJS for verification and prompting:
<! DOCTYPE html> 
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