sm-3">
            <div class="video-header">Skateboarding</div>
            <div class="video-container">
                <iframe src="https://youtube.com/embed/n4sCNi_9buI"></iframe>
            </div>
            </div>
            <div class="col-sm-3">
            <div class="video-header">Synchronized clapping</div>
            <div class="video-container">
                <iframe src="https://youtube.com/embed/oxexfpLn7FE"></iframe>
            </div>
            </div>
        </div>

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