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  <meta charset="utf-8">
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        <script >
            var Supports = {
                details: ('open' in document.createElement('details'))
                test: Supports.details,
                nope: 'js/details.polyfill.js'



Тема 1: Стихийные бедствия.
Автор: Булат Фаттахов
10. Таким женским именем звали ураган, сильно повредивший Новый Орлеан.
20. "Дождь лил четыре года, одиннадцать месяцев и два дня" именно там.
<details><summary>Ответ:</summary>в Макондо.</details>
30. В 1883 году было извержение вулкана именно на этом острове.
<details><summary>Ответ:</summary>Кракатау (Остров назывался так же как и вулкан).</details>
40. Армянские города Гюмри и Ванадзор, сильно пострадавшие во время землетрясения 1988 года, в советское время носили такие названия.
<details><summary>Ответ:</summary>Ленинакан и Кировокан.</details>
50. Крупнейшее за всю историю человечества это стихийное бедствие произошло в 1875 году в США, а не в Египте двумя тысячами годами ранее.
<details><summary>Ответ:</summary>Нашествие саранчи.</details>

Тема 2: Города России.
Автор: Булат Фаттахов
10. Это крупнейший город России после Москвы.
20. Москва крупнейший город России, а Тольятти тоже крупнейший город в России среди таких.
<details><summary>Ответ:</summary>Не являющийся столицей региона.</details>
30. Это - крупнейший город самого большого острова России.
40. Именно в этом городе происходит действие сериала "Счастливы вместе".
50. А именно этот город является самым западным городом России.






/* Licensed under the MIT license: */
(function (doc) {
'use strict';
var i, j,
idCount = 0,
rootNode = doc.documentElement,
headElem = doc.getElementsByTagName('head')[0] || rootNode,
bodyElem = doc.getElementsByTagName('body')[0] || rootNode,
detailStyleTag = doc.createElement('style'),
rules = 'details { display: block; overflow:hidden; } \n' +
'details[open] { height: auto; } \n' +
'summary { display:inline-block; } \n' +
'details * { visibility: hidden; } \n' +
'summary:first-child { visibility: visible; cursor: pointer; } \n' +
'details[open] * { visibility: visible } \n' +
'details[open] summary { margin-bottom: 0; }',
/* Technically, a summary element has a "Phrasing content" model and should be displayed inline.
* see,
* FYI: Chrome currently and incorrectly treats the <summary> element as block level.
addRule = function (styleTag, rule) {
if (styleTag.nodeName.toLowerCase() === 'style') {
if (!!styleTag['styleSheet'] && styleTag.styleSheet['cssText'] !== undefined) { //for MSIE
styleTag.styleSheet.cssText += '\n' + rule;
} else { styleTag.appendChild(doc.createTextNode('\n' + rule)); }
addEvent = function (el, eventName, f) {
//W3C event biding
if (el.addEventListener) {
el.addEventListener(eventName, f);
//IE event binding
} else if (el.attachEvent) {
el.attachEvent('on' + eventName, f);
// Fallback, but don't overwrite a preexisting "onclick" attribute.
} else if (el['on' + eventName] === null) {
el['on' + eventName] = f;
toggle = function (e) {
/* When a <summary> element is clicked the parent <details> element's "open"
* attribute needs to be toggled to maintain the attribute's reflective nature.
* see
var detailsElmnt,
target = || e.srcElement;
if (target.nodeName.toLowerCase() === 'summary') {
detailsElmnt = target;
while (detailsElmnt.nodeName.toLowerCase() !== 'details') {
detailsElmnt = detailsElmnt.parentNode;
//Break if we get to the root node without finding a details element.
if (detailsElmnt === bodyElem) {
detailsElmnt = null;
if (detailsElmnt) {
if (detailsElmnt.getAttribute('open')) {
} else { detailsElmnt.setAttribute('open', 'open'); }
bodyElem.className = bodyElem.className;
init = function () {
var detailsID,
height, //height of the summary element
detailsElems = doc.getElementsByTagName('details');
for (i = 0; i < detailsElems.length; i++) {
detailsElem = detailsElems[i];
if (!detailsElem.getAttribute('data-detailsid')) {
detailsID = 'd' + (idCount++);
detailsElem.className += (' ' + detailsID);
detailsElem.setAttribute('data-detailsID', detailsID);
/* The spec expects the functional <summary> element to be the first child node of a
* <details> element. In practice, it appears the first child <summary> element of a
* <detials> element is enlisted as the functional <summary> element and displayed as
* though it were the first child. For our purposes, we will do that explicitly.
* Additionaly, If a <summary> element does not exist, a default toggle is provided.
summaryElem = detailsElem.getElementsByTagName('summary')[0];
if (!summaryElem) {
summaryElem = doc.createElement('summary');
detailsElem.insertBefore(summaryElem, detailsElem.firstChild);
} else if ( summaryElem !== detailsElem.firstChild) {
detailsElem.insertBefore(summaryElem, detailsElem.firstChild);
height = summaryElem.offsetHeight;
addRule(detailStyleTag, 'details.' + detailsID + ' { height: ' + height + 'px; }\n' +
'details.' + detailsID + '[open] { height: auto; }');
//Text nodes are killing me here. Thanks to @Remy for the solve.
// Weighing the pros and cons of using a standard element like <span> or <b> vs a non-standard
// but more semantically meaninfull <text> element, I think <text> wins, though not without some
// regret.
for (j = 0; j < detailsElem.childNodes.length; j++ ) {
if (detailsElem.childNodes[j].nodeName === '#text' && (detailsElem.childNodes[j].nodeValue||'').replace(/\s/g, '').length) {
textWrapper = document.createElement('text');
detailsElem.insertBefore(textWrapper, detailsElem.childNodes[j]);
* The inserted stylesheet needs to be first so as to have a minimal cascading coeffecient.
* It also needs to be added to the DOM before IE can access it's properties.
* The polyfill only adds default or necessary styling and should not interfere with other style rules.
headElem.insertBefore(detailStyleTag, headElem.firstChild);
addRule(detailStyleTag, rules);
addEvent(bodyElem, 'click', toggle);
addEvent(bodyElem, 'DOMSubtreeModified', init);
}(document, undefined));