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ChatGPT Version in Header

To make the ChatGPT version in each chat located in the top.

/* ==UserStyle==
@name           ChatGPT Version in Header
@namespace      github.com/openstyles/stylus
@version        1.0.4
@description    To make the ChatGPT version in each chat located in the top.
@author         CY Fung
@license MIT
==/UserStyle== */

@-moz-document domain("chat.openai.com") {
    /* Insert code here... */
    
    main.flex>div.flex-1>div:first-child>div:first-child>div.flex:first-child>div.flex:first-child:nth-last-child(n+3) {
        position: sticky;
        top: 0;
        z-index: 999;
        background-color: #182436;
    }
    
}