{"id":607,"date":"2026-02-03T10:26:56","date_gmt":"2026-02-03T09:26:56","guid":{"rendered":"https:\/\/informatyka.odkrywajto.pl\/?p=607"},"modified":"2026-03-11T10:48:32","modified_gmt":"2026-03-11T09:48:32","slug":"css-podstawy-flexboxa-i-jego-wykorzystanie-do-budowy-ukladu-glownych-elementow-strony","status":"publish","type":"post","link":"https:\/\/informatyka.odkrywajto.pl\/?p=607","title":{"rendered":"CSS- podstawy flexboxa i jego wykorzystanie do budowy uk\u0142adu g\u0142\u00f3wnych element\u00f3w strony"},"content":{"rendered":"<p><span style=\"text-decoration: underline;\"><strong>CSS- podstawy flexboxa i jego wykorzystanie do budowy uk\u0142adu g\u0142\u00f3wnych element\u00f3w strony<\/strong><\/span><\/p>\n<p><strong>Flexbox (Flexible Box Layout)<\/strong> to modu\u0142 CSS s\u0142u\u017c\u0105cy do tworzenia elastycznych uk\u0142ad\u00f3w element\u00f3w w jednym wymiarze:<\/p>\n<ul data-spread=\"false\">\n<li>poziomym <strong>(row)<\/strong> lub<\/li>\n<li>pionowym <strong>(column)<\/strong>.<\/li>\n<\/ul>\n<h3>Podstawowe poj\u0119cia<\/h3>\n<ul data-spread=\"false\">\n<li><strong>flex container<\/strong> \u2013 element nadrz\u0119dny (<code>display: flex<\/code>),<\/li>\n<li><strong>flex items<\/strong> \u2013 elementy potomne kontenera,<\/li>\n<li><strong>o\u015b g\u0142\u00f3wna (main axis)<\/strong> i <strong>o\u015b poprzeczna (cross axis)<\/strong>.<\/li>\n<\/ul>\n<h2>Aktywacja Flexboxa<\/h2>\n<div class=\"cm-editor \u037c1 \u037c2 \u037c4 \u037c3i3 \u037c3i4\" contenteditable=\"false\" data-is-code-block-view=\"true\">\n<div class=\"cm-announced\" aria-live=\"polite\"><\/div>\n<div class=\"cm-scroller\" tabindex=\"-1\">\n<div class=\"cm-content\" role=\"textbox\" contenteditable=\"true\" spellcheck=\"false\" translate=\"no\" aria-multiline=\"true\" data-language=\"css\">\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">.<span class=\"\u037cp\">container<\/span> {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">display<\/span>: <span class=\"\u037cm\">flex<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<\/div>\n<div class=\"cm-layer cm-layer-above cm-cursorLayer\" aria-hidden=\"true\">\n<div class=\"cm-cursor cm-cursor-primary\"><\/div>\n<\/div>\n<div class=\"cm-layer cm-selectionLayer\" aria-hidden=\"true\"><\/div>\n<\/div>\n<\/div>\n<p>Po tej deklaracji wszystkie dzieci kontenera staj\u0105 si\u0119 elementami flex.<\/p>\n<h2>W\u0142a\u015bciwo\u015bci kontenera flex<\/h2>\n<h3>flex-direction \u2013 kierunek osi g\u0142\u00f3wnej<\/h3>\n<ul data-spread=\"false\">\n<li><code>row<\/code> (domy\u015blnie) \u2013 poziomo,<\/li>\n<li><code>row-reverse<\/code>,<\/li>\n<li><code>column<\/code> \u2013 pionowo,<\/li>\n<li><code>column-reverse<\/code>.<\/li>\n<\/ul>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">.<span class=\"\u037cp\">container<\/span> {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">display<\/span>: <span class=\"\u037cm\">flex<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">flex-direction<\/span>: <span class=\"\u037cm\">row<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<div>\n<h3>justify-content \u2013 wyr\u00f3wnanie wzd\u0142u\u017c osi g\u0142\u00f3wnej<\/h3>\n<ul data-spread=\"false\">\n<li><code>flex-start<\/code>,<\/li>\n<li><code>center<\/code>,<\/li>\n<li><code>flex-end<\/code>,<\/li>\n<li><code>space-between<\/code>,<\/li>\n<li><code>space-around<\/code>,<\/li>\n<li><code>space-evenly<\/code>.<\/li>\n<\/ul>\n<h3>align-items \u2013 wyr\u00f3wnanie wzd\u0142u\u017c osi poprzecznej<\/h3>\n<ul data-spread=\"false\">\n<li><code>stretch<\/code> (domy\u015blnie),<\/li>\n<li><code>center<\/code>,<\/li>\n<li><code>flex-start<\/code>,<\/li>\n<li><code>flex-end<\/code>.<\/li>\n<\/ul>\n<h3>flex-wrap \u2013 zawijanie element\u00f3w<\/h3>\n<ul data-spread=\"false\">\n<li><code>nowrap<\/code> (domy\u015blnie),<\/li>\n<li><code>wrap<\/code>.<\/li>\n<\/ul>\n<\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">.<span class=\"\u037cp\">container<\/span> {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">display<\/span>: <span class=\"\u037cm\">flex<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">flex-wrap<\/span>: <span class=\"\u037cm\">wrap<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<div>\n<h2>W\u0142a\u015bciwo\u015bci element\u00f3w flex<\/h2>\n<h3>flex-grow \u2013 rozci\u0105ganie element\u00f3w<\/h3>\n<p>Okre\u015bla, jak bardzo element mo\u017ce si\u0119 rozci\u0105gn\u0105\u0107 wzgl\u0119dem innych.<\/p>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">.<span class=\"\u037cp\">item<\/span> {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">flex-grow<\/span>: <span class=\"\u037cm\">1<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<\/div>\n<div>\n<h3>flex-shrink \u2013 zmniejszanie element\u00f3w<\/h3>\n<p>Decyduje, jak element reaguje na brak miejsca.<\/p>\n<h3>flex-basis \u2013 rozmiar pocz\u0105tkowy<\/h3>\n<p>Okre\u015bla bazowy rozmiar elementu.<\/p>\n<h3>Skr\u00f3cona w\u0142a\u015bciwo\u015b\u0107 flex<\/h3>\n<div class=\"cm-line\">.<span class=\"\u037cp\">item<\/span> {<\/div>\n<div class=\"cm-line\"><span class=\"\u037cn\">flex<\/span>: <span class=\"\u037cm\">1<\/span> <span class=\"\u037cm\">1<\/span> <span class=\"\u037cm\">200<\/span><span class=\"\u037ck\">px<\/span>;<\/div>\n<div class=\"cm-line\">}<\/div>\n<\/div>\n<div><\/div>\n<div>\n<h2>Budowa prostego uk\u0142adu strony z Flexboxem<\/h2>\n<h3><span style=\"text-decoration: underline;\">Struktura HTML<\/span><\/h3>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">&lt;<span class=\"\u037cj\">div<\/span> <span class=\"\u037cn\">class<\/span>=<span class=\"\u037cl\">&#8222;page&#8221;<\/span>&gt;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">&lt;<span class=\"\u037cj\">header<\/span>&gt;Header&lt;\/<span class=\"\u037cj\">header<\/span>&gt;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">&lt;<span class=\"\u037cj\">div<\/span> <span class=\"\u037cn\">class<\/span>=<span class=\"\u037cl\">&#8222;content&#8221;<\/span>&gt;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">&lt;<span class=\"\u037cj\">main<\/span>&gt;Main&lt;\/<span class=\"\u037cj\">main<\/span>&gt;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">&lt;<span class=\"\u037cj\">aside<\/span>&gt;Sidebar&lt;\/<span class=\"\u037cj\">aside<\/span>&gt;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">&lt;\/<span class=\"\u037cj\">div<\/span>&gt;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">&lt;<span class=\"\u037cj\">footer<\/span>&gt;Footer&lt;\/<span class=\"\u037cj\">footer<\/span>&gt;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">&lt;\/<span class=\"\u037cj\">div<\/span>&gt;<\/span><\/div>\n<\/div>\n<div><\/div>\n<div><span style=\"text-decoration: underline;\"><strong>CSS \u2013 uk\u0142ad strony<\/strong><\/span><\/div>\n<div><\/div>\n<div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">.<span class=\"\u037cp\">page<\/span> {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">display<\/span>: <span class=\"\u037cm\">flex<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">flex-direction<\/span>: <span class=\"\u037cm\">column<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">min-height<\/span>: <span class=\"\u037cm\">100<\/span><span class=\"\u037ck\">vh<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<div class=\"cm-line\"><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">.<span class=\"\u037cp\">content<\/span> {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">display<\/span>: <span class=\"\u037cm\">flex<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">flex<\/span>: <span class=\"\u037cm\">1<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<div class=\"cm-line\"><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cj\">main<\/span> {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">flex<\/span>: <span class=\"\u037cm\">3<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<div class=\"cm-line\"><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cj\">aside<\/span> {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">flex<\/span>: <span class=\"\u037cm\">1<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<\/div>\n<div><\/div>\n<div>\n<p>Efekt:<\/p>\n<ul data-spread=\"false\">\n<li>nag\u0142\u00f3wek u g\u00f3ry,<\/li>\n<li>stopka na dole,<\/li>\n<li>tre\u015b\u0107 g\u0142\u00f3wna i pasek boczny obok siebie.<\/li>\n<\/ul>\n<\/div>\n<h2>Flexbox a responsywno\u015b\u0107<\/h2>\n<p>Flexbox umo\u017cliwia \u0142atwe dostosowanie uk\u0142adu do r\u00f3\u017cnych ekran\u00f3w:<\/p>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037ck\">@media<\/span> (<span class=\"\u037cn\">max-width<\/span>: <span class=\"\u037cm\">768<\/span><span class=\"\u037ck\">px<\/span>) {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">.<span class=\"\u037cp\">content<\/span> {<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\"><span class=\"\u037cn\">flex-direction<\/span>: <span class=\"\u037cm\">column<\/span>;<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<div class=\"cm-line\"><span style=\"color: #ff0000;\">}<\/span><\/div>\n<div><\/div>\n<div>Na ma\u0142ych ekranach sidebar ustawia si\u0119 pod tre\u015bci\u0105.<\/div>\n<div><\/div>\n<div>\n<h2>\u0106wiczenie 1<\/h2>\n<ol start=\"1\" data-spread=\"false\">\n<li>Utw\u00f3rz kontener flex z trzema elementami i wyr\u00f3wnaj je:\n<ul data-spread=\"false\">\n<li>na \u015brodku,<\/li>\n<li>z r\u00f3wnymi odst\u0119pami.<\/li>\n<\/ul>\n<\/li>\n<li>Zbuduj layout: header \u2013 main \u2013 footer.<\/li>\n<li>Dodaj sidebar i spraw, aby na telefonie by\u0142 pod tre\u015bci\u0105.<\/li>\n<\/ol>\n<\/div>\n<h2>\u0106wiczenie 2 i 3<\/h2>\n<ol start=\"1\" data-spread=\"false\">\n<li>Zbuduj prost\u0105 stron\u0119 z nag\u0142\u00f3wkiem, menu, tre\u015bci\u0105 i stopk\u0105 przy u\u017cyciu Flexboxa.<\/li>\n<li>Przygotuj kr\u00f3tk\u0105 notatk\u0119: <em>Dlaczego Flexbox jest lepszy ni\u017c float?<\/em><\/li>\n<\/ol>\n<p>&nbsp;<\/p>\n<p><strong>Przydatny link:<\/strong><\/p>\n<p><a href=\"https:\/\/www.w3schools.com\/css\/css3_flexbox.asp\">https:\/\/www.w3schools.com\/css\/css3_flexbox.asp<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>CSS- podstawy flexboxa i jego wykorzystanie do budowy uk\u0142adu g\u0142\u00f3wnych element\u00f3w strony Flexbox (Flexible Box Layout) to modu\u0142 CSS s\u0142u\u017c\u0105cy do tworzenia elastycznych uk\u0142ad\u00f3w element\u00f3w w jednym wymiarze: poziomym (row) lub pionowym (column). Podstawowe poj\u0119cia flex container \u2013 element nadrz\u0119dny (display: flex), flex items \u2013 elementy potomne kontenera, o\u015b g\u0142\u00f3wna (main axis) i o\u015b poprzeczna [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":608,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9,14,52,16],"tags":[59],"class_list":["post-607","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aktualnosci","category-tutoriale","category-zadania","category-zadania-egzaminacyjne","tag-flexbox"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>CSS- podstawy flexboxa i jego wykorzystanie do budowy uk\u0142adu g\u0142\u00f3wnych element\u00f3w strony - Informatyka Zadania<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/informatyka.odkrywajto.pl\/?p=607\" \/>\n<meta property=\"og:locale\" content=\"pl_PL\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CSS- podstawy flexboxa i jego wykorzystanie do budowy uk\u0142adu g\u0142\u00f3wnych element\u00f3w strony - Informatyka Zadania\" \/>\n<meta property=\"og:description\" content=\"CSS- podstawy flexboxa i jego wykorzystanie do budowy uk\u0142adu g\u0142\u00f3wnych element\u00f3w strony Flexbox (Flexible Box Layout) to modu\u0142 CSS s\u0142u\u017c\u0105cy do tworzenia elastycznych uk\u0142ad\u00f3w element\u00f3w w jednym wymiarze: poziomym (row) lub pionowym (column). 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