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GM_addStyle_shim

This is just a shim to add back in GM_addStyle for scripts in @grant none mode, or that run on benighted engines without native GM_addStyle support.

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/44560/271595/GM_addStyle_shim.js 

function GM_addStyle (cssStr) {
    var D               = document;
    var newNode         = D.createElement ('style');
    newNode.textContent = cssStr;

    var targ    = D.getElementsByTagName ('head')[0] || D.body || D.documentElement;
    targ.appendChild (newNode);
}