Control the vertical centering of text in HTML text boxes through css_HTML/Xhtml_Web page production

When the height attribute of Text is defined, the text entered in Text is not vertically centered. However, you can add CSS to control it so that the entered text is vertically centered to make the web page more perfect.

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The code is as follows:

< head>

Join verticla-align, After setting the two properties of line-height, the text in the text box will be vertically centered in the text box. It should be noted that line-height must be equal to height.