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/* ussage 
<div flex-gap=fallback-margin style="--x-gap:10px">
  <span>a</span>
  <span>b</span>
</div>
*/

var div = document.createElement('div');
div.innerHTML = '<i></i><i></i>';
div.style.display = 'inline-flex';

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/* Copyright (c) 2016 Tobias Buschor https://goo.gl/gl0mbf | MIT License https://goo.gl/HgajeK */
/**
ussage: 
<table>
	<tr data-c1-href="https://example.com" data-c1-target="_blank">
		<td> <a href="https://example.com" target="_blank">example.com</a>
		<td> Do not forget to add a real link so that your content is accessible.
</table>
*/
c1 = {

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if (!HTMLFormElement.prototype.requestSubmit) {
    HTMLFormElement.prototype.requestSubmit = function(submitter) {
        let submitBtn = submitter;
        if (!submitBtn) {
            submitBtn = document.createElement('input');
            submitBtn.type = 'submit';
            submitBtn.hidden = true;
            this.appendChild(submitBtn);
        }
        submitBtn.click();

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!function(){
    var lastBtn = null
    document.addEventListener('click',function(e){
        if (!e.target.closest) return;
        lastBtn = e.target.closest('button, input[type=submit]');
    }, true);
    document.addEventListener('submit',function(e){
        if (e.submitter) return;
        var canditates = [document.activeElement, lastBtn];
        for (var i=0; i < canditates.length; i++) {

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writeStack = [];
write = function(callback){
	if (!writeStack.length) requestAnimationFrame(handleWriteStack);
	writeStack.push(callback);
}
handleWriteStack = function(){
	while (writeStack.length) writeStack.pop()();
}

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function interceptObjectProperties(obj, options){
    if (!options) options = {};
    if (!options.ignore) options.ignore = {};

    for (var i in obj) {
        const prop = i;
        if (!obj.hasOwnProperty(prop)) continue;
        if (options.ignore[prop]) continue;
        var descriptor = Object.getOwnPropertyDescriptor(obj, prop);
        if (descriptor.set) {

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c1CssImport = function (location) { // todo: handle absolute urls
    const e = new Error();
    const calledFile = e.stack.split('\n')[2].match(/[a-z]+:[^:]+/);
    const calledUrl = new URL(calledFile);
    calledUrl.search = '';
    const target = new URL(location, calledUrl).toString();
    for (let el of document.querySelectorAll('link[rel=stylesheet]')) {
        if (el.href === target) return; // already loaded
    }
    const link = document.createElement('link');

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{
    const iframe = document.createElement('iframe');
    document.body.append(iframe)
    setTimeout(()=>{ // wait some time until chrome adds console-accessible properties to the iframe too
      const customNames = Object.getOwnPropertyNames(window).filter(item => !(item in iframe.contentWindow) );
      const object = Object.create(null);
      customNames.forEach(name => object[name] = window[name] )
      console.log(object)
    },2000);
    'wait...';

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!function() {
	// style
    var styleObj = d.documentElement.style;
    var vendors = {'moz':1,'webkit':1,'ms':1,'o':1};
    c1.dom.css = function(el, style, value) {
        if (value === undefined) {
            if (typeof style === 'string') {
                // getter
                if (styleObj[style] !== undefined) return getComputedStyle(el).getPropertyValue(style);
                return getComputedStyle(el).getPropertyValue( c1.dom.css.experimental(style) );

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function stringToFragment(html){
    var tmpl = document.createElement('template');
    tmpl.innerHTML = html;
    if (tmpl.content == void 0){ // ie11
        var fragment = document.createDocumentFragment();
        var isTableEl = /^[^\S]*?<(t(?:head|body|foot|r|d|h))/i.test(html);
        tmpl.innerHTML = isTableEl ? '<table>'+html : html;
        var els        = isTableEl ? tmpl.querySelector(RegExp.$1).parentNode.childNodes : tmpl.childNodes;
        while(els[0]) fragment.appendChild(els[0]);