jira-detail.user.js

// ==UserScript==
// @name        Jira Detail Styling
// @namespace   https://github.com/andreasisaak
// @match       https://*.atlassian.net/browse/*
// @description Jira Detail Styling
// @version     1
// @author      Andreas Isaak <andy.jared@googlemail.com>
// ==/UserScript==

(function() {
    'use strict';

    function addGlobalStyle(css) {
        var head, style;
        head = document.getElementsByTagName('head')[0];
        if (!head) { return; }
        style = document.createElement('style');
        style.type = 'text/css';
        style.innerHTML = css;
        head.appendChild(style);
    }

    addGlobalStyle(
        '#aui-flag-container { top: 171px !important; }'
    );

})();