Based on my in-depth knowledge of various text editing software and word processing techniques, I will explain in detail the three different ways to mark numbers in the upper right corner of text:
1.Use word processing software such as Microsoft Word
a.Open the Word document and locate the text that you want to add the annotation in the upper right corner.
b.Click the "Insert" option in the toolbar, select the "Text Box" tool, and draw an appropriately sized text box on the page.
c.Enter the number you want to label in the text box.
d.Select the numbers and use the font setting function to adjust the size and style of the numbers to suit the annotation needs.
e.Drag the text box with your mouse to place it precisely in the upper-right corner of the text.
f.Select the Chinese box, click the "Shape Format" option in the toolbar, and set the line color of the text box to "None" to achieve seamless annotation effect.
2.Use PDF editing software such as Adobe Acrobat
a.Open the PDF file that needs to be edited.
b.Select the Comment tool and locate the Text Box or Note feature.
c.Click and drag near the text you want to annotate to create a text box.
d.Enter a number in the text box and adjust the font, size, and color as needed.
e.Use the mouse or arrow keys to fine-tune the position of the text box, making sure it appears in the upper-right corner of the text.
3.Use HTML CSS for web page annotation
a.Open the web page file in the HTML editor.
b.Navigate to the text element to which you want to add a label.
c.Use the CSS "::before" or "::after" pseudo-elements to create annotations. For example, you can add a class name to the target element and define a pseudo-element style for that class name in CSS, including content (i.e., the number to be displayed), position (top right), and style (e.g., font, size, color, etc.).
Please note that the specific steps may vary between software and apps. It is recommended to refer to the guide on the official help documentation or tutorial** of the relevant software for detailed guidance on your specific software.