{"id":1487,"date":"2024-08-02T06:52:37","date_gmt":"2024-08-02T04:52:37","guid":{"rendered":"https:\/\/blog.sutilweb.eu\/?page_id=1487"},"modified":"2024-08-02T06:52:37","modified_gmt":"2024-08-02T04:52:37","slug":"01-introduccion-a-css-flex","status":"publish","type":"page","link":"https:\/\/sutilweb.eu\/index.php\/lenguajes\/css3\/flex-css\/01-introduccion-a-css-flex\/","title":{"rendered":"01. Introducci\u00f3n a CSS Flex"},"content":{"rendered":"\n

La tecnolog\u00eda CSS Flexbox<\/strong> es un sistema de elementos flexibles<\/strong> que nace de la idea de olvidar estos mecanismos y acostumbrarnos a una mec\u00e1nica m\u00e1s potente, limpia y personalizable, en la que los elementos HTML<\/strong> se adaptan y colocan autom\u00e1ticamente, lo que permite personalizar los dise\u00f1os con m\u00e1s facilidad. Est\u00e1 especialmente dise\u00f1ado para crear, mediante CSS<\/strong>, estructuras<\/strong> de una s\u00f3la dimensi\u00f3n<\/strong>.<\/p>\n\n\n\n\n\n\n\n

Conceptos<\/h2>\n\n\n\n

Para empezar a utilizar flexbox<\/strong> lo primero que debemos hacer es conocer algunos de los elementos b\u00e1sicos de este nuevo esquema, que son los siguientes.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n
    \n
  • Contenedor<\/strong>: es el elemento padre, que posee en su interior cada uno de los items flexibles<\/strong>, por defecto el eje principal del contenedor flexbox<\/strong> es en horizontal<\/strong> (en fila<\/strong> \/ row<\/strong>)\n
      \n
    • Eje\u00a0 principal<\/strong>: los contenedores flexbox<\/strong> tienen una orientaci\u00f3n principal espec\u00edfica, que por defecto es en fila.<\/li>\n\n\n\n
    • Eje secundario<\/strong>: disponen de una orientaci\u00f3n secundaria, perpendicular a la principal.<\/li>\n<\/ul>\n<\/li>\n\n\n\n
    • Item<\/strong>: es cada uno de los hijos que tendr\u00e1 el contenedor en su interior.<\/li>\n<\/ul>\n\n\n\n

      Ejm<\/strong><\/p>\n\n\n\n

          <div class=\"container\">\n      <!-- Flex container -->\n      <div class=\"item item-1\">1<\/div>\n      <!-- Flex items -->\n      <div class=\"item item-2\">2<\/div>\n      <div class=\"item item-3\">3<\/div>\n    <\/div><\/pre>\n\n\n\n
      Para activar el modo flexbox<\/strong>, hemos utilizado sobre el elemento contenedor la propiedad display<\/code><\/strong><\/em>, y especificamos el valor flex<\/code> <\/em><\/strong>o inline-flex<\/em><\/strong><\/code> (dependiendo de como queramos que se comporte el contenedor).<\/p>\n\n\n\n
      Tipo de elemento<\/th>Descripci\u00f3n<\/th><\/tr><\/thead>
      inline-flex<\/em><\/strong><\/code><\/td>Establece un contenedor en l\u00ednea<\/strong>, similar a inline-block<\/em><\/strong><\/code> (ocupa solo el contenido).<\/td><\/tr>
      flex<\/em><\/strong><\/code><\/td>Establece un contenedor en bloque<\/strong>, similar a block<\/code> <\/em><\/strong>(ocupa todo el ancho del padre).<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
      Por defecto, observaremos que los elementos se disponen todos sobre una misma l\u00ednea. Esto ocurre porque estamos utilizando el modo flexbox<\/strong> y estaremos trabajando con \u00edtems flexibles b\u00e1sicos, garantizando que no se desbordar\u00e1n ni mostrar\u00e1n los problemas que, por ejemplo, tienen los porcentajes sobre elementos que no utilizan flexbox<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":"
      La tecnolog\u00eda CSS Flexbox es un sistema de elementos flexibles que nace de la idea de olvidar estos mecanismos y acostumbrarnos a […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":1484,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"class_list":["post-1487","page","type-page","status-publish","hentry"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false},"uagb_author_info":{"display_name":"Sutil Web","author_link":"https:\/\/sutilweb.eu\/index.php\/author\/sutilweb\/"},"uagb_comment_info":0,"uagb_excerpt":"La tecnolog\u00eda CSS Flexbox es un sistema de elementos flexibles que nace de la idea de olvidar estos mecanismos y acostumbrarnos a […]","_links":{"self":[{"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages\/1487","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/comments?post=1487"}],"version-history":[{"count":2,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages\/1487\/revisions"}],"predecessor-version":[{"id":1490,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages\/1487\/revisions\/1490"}],"up":[{"embeddable":true,"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/pages\/1484"}],"wp:attachment":[{"href":"https:\/\/sutilweb.eu\/index.php\/wp-json\/wp\/v2\/media?parent=1487"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}