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Go to Structure > Add Block
Under Block Description, enter a description such as COVID-19 Alert
Under Block Body, paste the following:
<div class="well well-sm">
<p><strong class="text-danger"><span class="fas fa-exclamation-triangle"> </span> <small>CORONAVIRUS (COVID-19) UPDATE – CAMPUS CLOSED:</small></strong> All in-person classes, activities and events are postponed until April 5. Online/distance classes continue to be held as scheduled. Students are encouraged to contact their instructors for any additional class information. <small><a href="https://www.maricopa.edu/coronavirus-2019-nCoV" target="_blank" title="Link opens in a new tab/window.">Maricopa Coronavirus Website</a> | <a href="https://www.getrave.com/login/maricopa-community" target="_blank" title="Link opens in a new tab/window.">Sign up for RAVE Alerts</a></small></p>
</div>
Switch text format to full HTML
Under Region Settings, select Alert
Under Visibility Settings > Pages, make sure all pages except those listed is selected
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