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This article is about how to use textarea to set the underscore format in HTML+CSS. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

Functional requirements:

1: how to achieve a horizontal line below each line in a multiline text box textarea

There is a paragraph in the 2:textarea text box that cannot be deleted.

Implementation method:

Horizontal lines are made with background images, and immobile text is indented by floating layer + adding text-indent to textarea.

The source code is as follows:

Html >

Textarea sets the underscore format

. Input {position:relative}

. Word {position:absolute;line-height:20px;left:0px;top:1px;z-index:10;background:#fff}

. Input?textarea {border:none;?text-indent:75px;line-height:20px;background:url (

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