javascript:( function() { backgroundColor = 'rgb(198, 192, 160)'; foregroundColor = 'rgb(0,40,60)'; function getRGBColor(node,prop) { var rgb=getComputedStyle(node,null).getPropertyValue(prop); var r,g,b; if(/rgb\((\d+),\s(\d+),\s(\d+)\)/.exec(rgb)) { r=parseInt(RegExp.$1,10); g=parseInt(RegExp.$2,10); b=parseInt(RegExp.$3,10); return[r/255,g/255,b/255]; } return rgb; } var blockTags = [ /* элементы, входящие в сущность block */ 'p', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'ul', 'ol', 'pre', 'dl', 'div', 'noscript', 'blockquote', 'form', 'hr', 'table', 'fieldset', 'address', /* в сущность block не входят */ 'th', 'td', 'caption' ]; function isBlock(tagName) { tagName = tagName.toLowerCase(); for (var i = 0; i < blockTags.length; ++i) if (blockTags[i] == tagName) return true; return false; } inlineTags = [ 'tt', 'i', 'b', 'big', 'small', 'em', 'strong', 'dfn', 'samp', 'kbd', 'var', 'cite', 'abbr', 'acronym', 'a', 'img', 'br', 'sub', 'sup', 'span', 'bdo', 'q' ]; function isInline(tagName) { tagName = tagName.toLowerCase(); for (var i = 0; i < inlineTags.length; ++i) if (inlineTags[i] == tagName) return true; return false; } function containBlockElement(node) { var childNodes = node.childNodes; for (var i = 0; i < childNodes.length; ++i) { var cn = childNodes[i]; if (cn.nodeType == Node.ELEMENT_NODE && isBlock(cn.tagName)) return true; } return false; } function containInlineElement(node) { var childNodes = node.childNodes; for (var i = 0; i < childNodes.length; ++i) { var cn = childNodes[i]; if (cn.nodeType == Node.ELEMENT_NODE && isInline(cn.tagName)) return true; } return false; } function containText(node) { var childNodes = node.childNodes; for (var i = 0; i < childNodes.length; ++i) { var cn = childNodes[i]; if (cn.nodeType == Node.TEXT_NODE) { var s = cn.nodeValue; for (var j = 0; j < s.length; ++j) if (s[j] > ' ') return true; } } return false; } function modifyElement(node) { node.style.setProperty('background', 'none', ''); var color = getRGBColor(node, 'background-color'); if (typeof(color) != 'string' && color[0] + color[1] + color[2] >= 2.8) node.style.setProperty('background-color', backgroundColor, ''); var tagName = node.tagName.toLowerCase(); if (isBlock(tagName) && (containText(node) || containInlineElement(node))) { var block = document.createElement('div'); block.style.setProperty('max-width', '35em', ''); var cur_align = getComputedStyle(node, null).getPropertyValue('text-align'); if (cur_align == 'justify') block.style.setProperty('text-align', 'left', ''); block.style.setProperty('margin', 'auto', ''); block.style.setProperty('line-height', '150%', ''); var color = getRGBColor(node, 'color'); if (typeof(color) != 'string' && color[0] + color[1] + color[2] <= 0.3) { block.style.setProperty('color', foregroundColor, ''); } while (node.childNodes.length > 0) { var child = node.childNodes[0]; block.appendChild(child.cloneNode(true)); node.removeChild(child); } node.appendChild(block); } } function modify(n) { if(n.nodeType == Node.ELEMENT_NODE) { var tagName = n.tagName.toLowerCase(); if (tagName != 'input' && tagName != 'select' && tagName != 'textarea') { for(var i = 0; i < n.childNodes.length; ++i) { var x = n.childNodes[i]; modify(x); } modifyElement(n); } } } var body = document.body; var table = document.createElement('table'); table.style.setProperty('background', 'black', 'important'); table.style.setProperty('margin-left', 'auto', 'important'); table.style.setProperty('margin-right', 'auto', 'important'); var tbody = document.createElement('tbody'); table.appendChild(tbody); var tr = document.createElement('tr'); tbody.appendChild(tr); var td = document.createElement('td'); td.style.setProperty('background', backgroundColor, 'important'); td.style.setProperty('padding', '10px', 'important'); tr.appendChild(td); while (body.childNodes.length > 0) { child = body.firstChild; clone = child.cloneNode(true); body.removeChild(child); td.appendChild(clone); } modify(td); body.style.setProperty('background-color', 'black', 'important'); body.appendChild(table); } )()