Box-drawing character

A box-drawing character is like a special symbol that people use to make pictures that look like boxes. You know how you draw a box by making four straight lines that meet at right angles? You can use box-drawing characters to make boxes like that on a computer or phone.

These characters are kind of like letters and numbers, but instead of being used for words and sentences, they are used to make pictures. They come in different shapes, such as a simple vertical line, a horizontal line, corners, T-junctions, and crosses.

For example, if you write this on your computer:
```
┌──────┐
│ Hello │
└──────┘
```

You'll get a picture that looks like a box with the word "Hello" inside it. Cool, right?

Box-drawing characters are really helpful when people need to make a table or chart with boxes, and they don't want to draw each box by hand. Instead, they can just use these characters to draw the boxes automatically. It saves a lot of time and makes the table or chart look nice and organized.

So, if you want to create a picture of a box on your computer or phone, all you have to do is use the box-drawing characters!