upstream-zulip/web/templates/message_reaction.hbs

<div class="message_reaction_container {{#if is_archived}}disabled{{/if}}">
    <div class="{{this.class}} {{#if is_archived}}disabled{{/if}}" aria-label="{{this.label}}" data-reaction-id="{{this.local_id}}">
        {{#if this.emoji_alt_code}}
            <div class="emoji_alt_code">&nbsp;:{{this.emoji_name}}:</div>
        {{else if this.is_realm_emoji}}
            <img src="{{this.url}}" class="emoji" />
        {{else}}
            <div class="emoji emoji-{{this.emoji_code}}"></div>
        {{/if}}
        <div class="message_reaction_count">{{this.vote_text}}</div>
    </div>
</div>