{"id":1642,"date":"2010-11-21T17:56:42","date_gmt":"2010-11-21T19:56:42","guid":{"rendered":"https:\/\/www.kadunew.com\/blog\/?p=1642"},"modified":"2011-03-11T20:52:33","modified_gmt":"2011-03-11T22:52:33","slug":"mostrar-legenda-ao-passar-o-mouse-sobre-imagens","status":"publish","type":"post","link":"https:\/\/www.kadunew.com\/blog\/css\/mostrar-legenda-ao-passar-o-mouse-sobre-imagens","title":{"rendered":"Mostrar legenda ao passar o mouse sobre imagens"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.kadunew.com\/blog\/wp-content\/uploads\/2010\/11\/legenda-hover-css.png\" alt=\"Legenda com CSS\" title=\"Legenda com CSS\" width=\"538\" height=\"169\" class=\"aligncenter size-full wp-image-1646\" srcset=\"https:\/\/www.kadunew.com\/blog\/wp-content\/uploads\/2010\/11\/legenda-hover-css.png 538w, https:\/\/www.kadunew.com\/blog\/wp-content\/uploads\/2010\/11\/legenda-hover-css-300x94.png 300w\" sizes=\"(max-width: 538px) 100vw, 538px\" \/><br \/>\nVou mostrar um exemplo r\u00e1pido para fazer o efeito de revelar a <strong>legenda de uma imagem<\/strong> apenas quando o usu\u00e1rio passar o mouse sobre a imagem. Normalmente se coloca a legenda logo abaixo da imagem, nesse caso a legenda aparecer\u00e1 sobre a imagem e na parte inferior. O efeito \u00e9 inteiramente feito com CSS, sem qualquer necessidade de JavaScript. \u00c9 um \u00f3timo efeito para ser usado em <strong>galerias de imagens<\/strong> para colocar a descri\u00e7\u00e3o da imagem quando o mouse estiver sobre a imagem.<br \/>\n<!--more Continuar lendo...--><br \/>\nA t\u00e9cnica do efeito consiste em esconder a legenda at\u00e9 que o usu\u00e1rio <strong>passe o mouse sobre a imagem<\/strong>. Repare que usamos a marca\u00e7\u00e3o <code>span class=\"desc\"<\/code> para tal finalidade. Pensando em tornar mais \u00f3bvio que temos uma legenda na imagem vamos adicionar um link <em>&#8220;saiba mais&#8221;<\/em>. Quando o visitante do site passar o mouse sobre o link a legenda aparecer\u00e1.<\/p>\n<h2>Exemplo<\/h2>\n<p>Voc\u00ea pode ver o resultado final desse tutorial na <a href=\"http:\/\/kadunew.com\/blog\/exemplo-legenda-css.html\" target=\"_blank\" rel=\"nofollow\">P\u00e1gina de Exemplo<\/a>. O site <a href=\"http:\/\/www.designflavr.com\/category\/flash\/\" target=\"_blank\" rel=\"nofollow\">DesignFlavr<\/a> faz uso desse efeito, por\u00e9m um pouco mais complexo.<\/p>\n<h2>HTML<\/h2>\n<pre class=\"brush: xml; title: ; notranslate\" title=\"\">\r\n&lt;div class=&quot;imgefeito&quot;&gt;\r\n&lt;a href=&quot;#&quot;&gt;\r\n\t&lt;img src=&quot;teste.jpg&quot; alt=&quot;Daim Graffiti&quot; \/&gt;\r\n\t&lt;span class=&quot;mais&quot;&gt;Saiba Mais&lt;\/span&gt;\r\n\t&lt;span class=&quot;desc&quot;&gt;\r\n\t\t&lt;strong&gt;Lorem Ipsum&lt;\/strong&gt;\r\n\t\tIs simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry&#039;s standard dummy text ever since the 1500s, when an unknown printer took a galley.\r\n\t&lt;\/span&gt;\r\n&lt;\/a&gt;\r\n&lt;\/div&gt;\r\n<\/pre>\n<h2>CSS<\/h2>\n<p>Abaixo a estiliza\u00e7\u00e3o da DIV que aloca todos os outros elementos.<\/p>\n<pre class=\"brush: css; title: ; notranslate\" title=\"\">\r\n.imgefeito {\r\n\tmargin: 0;\r\n\toverflow: hidden;\r\n\tfloat: left;\r\n\tposition: relative;\r\n}\r\n.imgefeito a {\r\n\ttext-decoration: none;\r\n\tfloat: left;\r\n}\r\n.imgefeito a:hover {\r\n\tcursor: pointer;\r\n} \r\n<\/pre>\n<p>Estiliza\u00e7\u00e3o da imagem onde aparecer\u00e1 o texto no estado hover, ou seja, quando o mouse estiver sobre a imagem.<\/p>\n<pre class=\"brush: css; title: ; notranslate\" title=\"\">\r\n.imgefeito a img {\r\n\tfloat: left;\r\n\tmargin: 0;\r\n\tborder: none;\r\n\tpadding: 10px;\r\n\tbackground: #fff;\r\n\tborder: 1px solid #ddd;\r\n} \r\n<\/pre>\n<p>Em seguida estilizamos o texto <em>Saiba Mais<\/em> e a &#8220;caixa&#8221; da legenda que ser\u00e1 mostrada quando passarmos o mouse sobre o texto. Perceba o uso de um comando propriet\u00e1rio da Microsoft, <code>-ms-filter<\/code> para o efeito funcionar no Internet Explorer 8.<\/p>\n<pre class=\"brush: css; title: ; notranslate\" title=\"\">\r\n.imgefeito a .mais {\r\n\tposition: absolute;\r\n\tright: 20px;\r\n\tbottom: 20px;\r\n\tfont-size: 1.2em;\r\n\tcolor: #fff;\r\n\tbackground: #000;\r\n\tpadding: 5px 10px;\r\n\tfilter:alpha(opacity=65);\r\n\topacity:.65;\r\n\t-ms-filter: &quot;progid:DXImageTransform.Microsoft.Alpha(Opacity=65)&quot;; \/*--IE 8 Transparency--*\/\r\n}\r\n.imgefeito a:hover .desc{\r\n\tdisplay: block;\r\n\tfont-size: 1.2em;\r\n\tpadding: 10px 0;\r\n\tbackground: #111;\r\n\tfilter:alpha(opacity=75);\r\n\topacity:.75;\r\n\t-ms-filter: &quot;progid:DXImageTransform.Microsoft.Alpha(Opacity=75)&quot;; \/*--IE 8 Transparency--*\/\r\n\tcolor: #fff;\r\n\tposition: absolute;\r\n\tbottom: 11px;\r\n\tleft: 11px;\r\n\tpadding: 10px;\r\n\tmargin: 0;\r\n\twidth: 615px;\r\n\tborder-top: 1px solid #999;\r\n}\r\n.imgefeito a:hover .desc strong {\r\n\tdisplay: block;\r\n\tmargin-bottom: 5px;\r\n\tfont-size:1.5em;\r\n}\r\n\r\n<\/pre>\n<p><strong>Refer\u00eancias:<\/strong><br \/>\n<a href=\"http:\/\/www.sohtanaka.com\/web-design\/css-on-hover-image-captions\/\" rel=\"nofollow\">Sohtanaka<\/a> e <a href=\"http:\/\/aranea.zuavra.net\/index.php\/35\/\" rel=\"nofollow\">Aranea.Zuavra<\/a>.<\/p>\n<p>Como falei no artigo, esta t\u00e9cnica \u00e9 muito \u00fatil para sites de galerias de imagens. Pelo fato da legenda aparecer sobre a imagem, conseguimos economizar espa\u00e7o na p\u00e1gina j\u00e1 que n\u00e3o precisamos deixar um espa\u00e7o para a legenda. Fica a\u00ed a dica!<\/p>\n<p>Quer ficar sabendo das atualiza\u00e7\u00f5es aqui no Blog? Siga-me no Twitter: <a href=\"http:\/\/www.twitter.com\/kadunew\" rel=\"nofollow\">@kadunew<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vou mostrar um exemplo r\u00e1pido para fazer o efeito de revelar a legenda de uma imagem apenas quando o usu\u00e1rio passar o mouse sobre a imagem. Normalmente se coloca a legenda logo abaixo da imagem, nesse caso a legenda aparecer\u00e1 sobre a imagem e na parte inferior. O efeito \u00e9 inteiramente feito com CSS, sem [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[45],"class_list":["post-1642","post","type-post","status-publish","format-standard","hentry","category-css","tag-css"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Mostrar legenda ao passar o mouse sobre imagens<\/title>\n<meta name=\"description\" content=\"Tutorial de CSS que mostra como inserir uma legenda quando o usu\u00e1rio passar o mouse sobre uma imagem. 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