i want bullet format for paragraph in css?

I don't know what you are trying to achieve but doing it only through css is a big no no.
It's just not the way it should be done.
Nevertheless, I have 2 solutions for your problem and I recommend the first one:

1. Put the paragraph in a <ul> tag.
2. Set the paragraph with background that has only the dot at the top left corner.
3. Find a dot character in a font and add it at the beginning of the paragraph.

Best of luck.

Use

<ul>
    <li>
        <p>
            Paragraph 1
        </p>
    </li>
    <li>
        <p>
            Paragraph 2
        </p>
    </li>
</ul>

Use the follwoing

<ul>
                <li>
                    <p>
                        Hello World
                    </p>
                </li>
                <li>
                    <p>
                        Hello World
                    </p>
                </li>
                <li>
                    <p>
                        Hello World
                    </p>
                </li>
            </ul>