bootstrap display none

&lt;div class="visible"&gt;...&lt;/div&gt;
&lt;div class="invisible"&gt;...&lt;/div&gt;

&lt;span class="d-block p-2 bg-primary text-white"&gt;d-block&lt;/span&gt;
&lt;span class="d-block p-2 bg-dark text-white"&gt;d-block&lt;/span&gt;

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