How to stop marquee text for awhile and then continue?

I want when each <li> end the marquee stop for a few second, and then continue to the next <li>. this is my code:

<div id="teks_container" >
    <marquee direction="up" scrollamount="3"  height="200px">
        <ul>
           <li><strong><p align="justify">
                I was wondering if it's possible</strong> to create HTML Rolling Credits in a website. If so, how do I need to do? Thanks
            </p></li><br/>
           <li><strong><p align="justify">
                I was wondering if it's possible</strong> to create HTML Rolling Credits in a website. If so, how do I need to do? Thanks
           </p></li><br/>
           <li><strong><p align="justify">
                I was wondering if it's possible</strong> to create HTML Rolling Credits in a website. If so, how do I need to do? Thanks
           </p></li><br/>
           <li><strong><p align="justify">
                I was wondering if it's possible</strong> to create HTML Rolling Credits in a website. If so, how do I need to do? Thanks
           </p></li><br/>
       </ul>
    </marquee>
</div>