{"id":2972,"date":"2022-10-04T08:40:30","date_gmt":"2022-10-04T08:40:30","guid":{"rendered":"http:\/\/the-codest.localhost\/blog\/3-useful-html-tags-you-might-not-know-even-existed\/"},"modified":"2026-03-11T05:54:57","modified_gmt":"2026-03-11T05:54:57","slug":"3-gagnleg-html-merki-sem-thu-vissir-kannski-ekki-einu-sinni-ad-vaeru-til","status":"publish","type":"post","link":"https:\/\/thecodest.co\/is\/blog\/3-useful-html-tags-you-might-not-know-even-existed\/","title":{"rendered":"3 gagnleg HTML-merki sem \u00fe\u00fa vissir kannski ekki einu sinni a\u00f0 v\u00e6ru til"},"content":{"rendered":"<p>Framhli\u00f0ar\u00fer\u00f3unara\u00f0ilar \u00feurfa a\u00f0 vera mj\u00f6g kunnugir <strong>HTML-merki<\/strong> \u00fear sem \u00feetta er e\u00f0lilegt umhverfi \u00feeirra \u00e1 hverjum degi. \u00c9g ve\u00f0ja a\u00f0 \u00fei\u00f0 \u00feekki\u00f0 nokkur grunnmerki eins og <code>, ,<\/code> og svo framvegis. En til d\u00e6mis, vissir \u00fe\u00fa a\u00f0 \u00fe\u00fa getur lagt til or\u00f0askur\u00f0art\u00edmapunkt me\u00f0 \u00fev\u00ed a\u00f0 nota eing\u00f6ngu <strong>HTML<\/strong>, \u00e1n CSS?<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Velkomnir aftur<\/h2>\n\n\n\n<p>Segjum sem svo a\u00f0 \u00fe\u00fa s\u00e9rt a\u00f0 vinna a\u00f0 vefs\u00ed\u00f0u e\u00f0a forriti fyrir \u00fe\u00fdskum vi\u00f0skiptavini. Eins og \u00fe\u00fa veist geta \u00fe\u00fdsk or\u00f0 veri\u00f0 \u00f3tr\u00falega l\u00f6ng. Svo \u00fe\u00fa hefur h\u00f6nnunina me\u00f0 nokkru textainnihaldi sem \u00fe\u00fa \u00fearft a\u00f0 endurskapa \u00ed <a href=\"https:\/\/thecodest.co\/is\/dictionary\/what-is-code-refactoring\/\">k\u00f3\u00f0i<\/a> og \u00feessi efni \u00feurfa a\u00f0 brotna \u00e1 mj\u00f6g \u00e1kve\u00f0num augnablikum. H\u00e9r kemur <code><wbr><\/code> Merki til a\u00f0 hj\u00e1lpa \u00fe\u00e9r.<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"\">Afm\u00e6liskaka<\/code><\/pre>\n\n\n\n<p>\u00deetta er \u00fea\u00f0! Me\u00f0 svo einf\u00f6ldu tag-i getur\u00f0u breytt innihaldi texta eins og \u00fe\u00fa vilt.<\/p>\n\n\n\n<p>En hva\u00f0 me\u00f0 vafrastu\u00f0ning? J\u00e6ja, hann er nokku\u00f0 g\u00f3\u00f0ur, til a\u00f0 vera hreinskilinn. Flestir vafra skilja \u00feessa merkingu, en Opera \u00e1 Android og Safari \u00e1 iOS g\u00e6tu \u00e1tt \u00ed vandr\u00e6\u00f0um.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/app\/uploads\/2024\/05\/1.webp\" alt=\"wbr samh\u00e6fnis tafla\" title=\"wbr samh\u00e6fni \"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">M\u00e6li<\/h2>\n\n\n\n<p>\u00cdmynda\u00f0u \u00fe\u00e9r a\u00f0 \u00fe\u00fa s\u00e9rt a\u00f0 byggja upp diskageymslustj\u00f3raforrit. \u00de\u00fa \u00fearft einhvernig a\u00f0 s\u00fdna \u00ed notendavi\u00f0m\u00f3tinu hversu miki\u00f0 geymslupl\u00e1ss er enn tilt\u00e6kt, og \u00fe\u00fa vilt virkilega gera \u00fea\u00f0 sem a\u00f0gengilegast. \u00deetta er bara fullkomi\u00f0 notkunartilvik fyrir <code>m\u00e6li<\/code> Merki. \u00dea\u00f0 mun bara s\u00fdna \u00fe\u00e9r gildi\u00f0 innan fyrirfram skilgreinds bili. Anna\u00f0 flott vi\u00f0 \u00feetta merki eru eiginleikar \u00feess:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>l\u00e1gt \u2192 \u00feegar n\u00faverandi gildi er l\u00e6gra en stillta l\u00e1gmarki\u00f0, ver\u00f0ur st\u00f6ng m\u00e6lisins rau\u00f0;<\/li>\n\n\n\n<li>h\u00e1mark \u2192 \u00feegar n\u00faverandi gildi er h\u00e6rra en h\u00e1marksgildi eiginleikans, ver\u00f0ur st\u00f6ng m\u00e6lisins gr\u00e6n;<\/li>\n\n\n\n<li>h\u00e1tt \u2192 \u00feegar h\u00e1 gildi er l\u00e6gra en h\u00e1mark og h\u00e6rra en kj\u00f6rgildi, ver\u00f0ur st\u00f6ng m\u00e6lisins appels\u00ednugul. Annars ver\u00f0ur h\u00fan gr\u00e6n.<\/li>\n<\/ul>\n\n\n\n<p>\u00de\u00fa g\u00e6tir l\u00edka \u00feekkt svipa\u00f0a merkimi\u00f0a sem heitir progress. Hver er \u00fe\u00e1 eiginlega munurinn \u00e1 \u00feeim? Progress-merki\u00f0 \u00e6tti a\u00f0 nota fyrir verkefni sem eru \u00ed gangi. Me\u00f0 \u00f6\u00f0rum or\u00f0um, nota\u00f0u progress-merki\u00f0 \u00feegar \u00fe\u00fa ert a\u00f0 vinna me\u00f0 tilteki\u00f0 verkefni. Meter-merki\u00f0 \u00e6tti a\u00f0 nota til a\u00f0 s\u00fdna diskapot e\u00f0a minnisnotkun. Annar munur er s\u00e1 a\u00f0 meter-merki\u00f0 er ekki studd \u00ed IE og \u00fea\u00f0 er \u00ed raun eini \u00f3kosturinn vi\u00f0 \u00feetta merki.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/app\/uploads\/2024\/05\/2.webp\" alt=\"m\u00e6lik\u00f6nnun m\u00e6lis \" title=\"M\u00e6likvar\u00f0a samh\u00e6fni\"\/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">DEL og INS<\/h2>\n\n\n\n<p>Hefur\u00f0u einhvern t\u00edma velt \u00fev\u00ed fyrir \u00fe\u00e9r hvernig \u00e1 a\u00f0 b\u00faa til a\u00f0gengilegan v\u00edsbendingarv\u00edsi um eytt og b\u00e6tt efni (munur \u00ed GitHub e\u00f0a t\u00f6lvup\u00f3sttilkynningar fr\u00e1 Jira \u00feegar mi\u00f0inn hefur veri\u00f0 uppf\u00e6r\u00f0ur)? \u00de\u00fa \u00fearft bara a\u00f0 vefja hi\u00f0 eytt efni me\u00f0 the<code><del><\/code>merki. Til d\u00e6mis: <code>&lt;del&gt;&lt;p&gt;Bara eyddur efni&lt;\/p&gt;&lt;\/del&gt;<\/code>. Til a\u00f0 s\u00fdna a\u00f0eins \u00feann b\u00e6ttan hluta efnisins getur\u00f0u nota\u00f0<code><\/ins><\/code> Tagi\u00f0 b\u00fd\u00f0ur einnig upp \u00e1 tv\u00f6 eiginleika:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Tilgreina au\u00f0kenni au\u00f0lindar sem \u00fatsk\u00fdrir hvers vegna \u00feessum hluta var b\u00e6tt vi\u00f0;<\/li>\n\n\n\n<li>dagsetningart\u00edmi \u2192 <a href=\"https:\/\/thecodest.co\/is\/blog\/app-data-collection-security-risks-value-and-types-explored\/\">g\u00f6gn<\/a> og t\u00edma breytingarinnar.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"\/app\/uploads\/2024\/05\/ins-compatibility.webp\" alt=\"\u00cd samh\u00e6fni t\u00f6flu \" title=\"samh\u00e6fni\"\/><\/figure>\n\n\n\n<p>\u00dea\u00f0 eru, au\u00f0vita\u00f0, mun gagnlegri <strong>Merki \u00ed HTML <\/strong>. \u00c9g m\u00e6li eindregi\u00f0 me\u00f0 a\u00f0 nota \u00feau \u00f6ll \u00feegar m\u00f6gulegt er og vi\u00f0 \u00e1. Vi\u00f0skiptavinir \u00fe\u00ednir og notendur forritsins munu \u00feakka \u00fe\u00e9r fyrir sl\u00edka n\u00e1lgun. Vertu \u00fe\u00f3 vark\u00e1r, \u00fev\u00ed sumar merkimi\u00f0ar kunna a\u00f0 vera \u00fareltar. \u00de\u00fa getur alltaf ganga\u00f0 \u00far skugga um a\u00f0 sjaldg\u00e6fari merkimi\u00f0i sem \u00fe\u00fa vilt nota s\u00e9 enn \u00ed gildi og hafi g\u00f3\u00f0an stu\u00f0ning \u00ed <a href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/HTML\/Element\">MDN-skj\u00f6l<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"_wp_link_placeholder\"><img loading=\"lazy\" decoding=\"async\" width=\"1283\" height=\"460\" src=\"https:\/\/thecodest.co\/app\/uploads\/2024\/05\/interested_in_cooperation_.png\" alt=\"\" class=\"wp-image-4927\" srcset=\"https:\/\/thecodest.co\/app\/uploads\/2024\/05\/interested_in_cooperation_.png 1283w, https:\/\/thecodest.co\/app\/uploads\/2024\/05\/interested_in_cooperation_-300x108.png 300w, https:\/\/thecodest.co\/app\/uploads\/2024\/05\/interested_in_cooperation_-1024x367.png 1024w, https:\/\/thecodest.co\/app\/uploads\/2024\/05\/interested_in_cooperation_-768x275.png 768w, https:\/\/thecodest.co\/app\/uploads\/2024\/05\/interested_in_cooperation_-18x6.png 18w, https:\/\/thecodest.co\/app\/uploads\/2024\/05\/interested_in_cooperation_-67x24.png 67w\" sizes=\"auto, (max-width: 1283px) 100vw, 1283px\" \/><\/a><\/figure>","protected":false},"excerpt":{"rendered":"<p>N\u00fa \u00e1 d\u00f6gum er a\u00f0gengi (A11y) afar mikilv\u00e6gt \u00e1 \u00f6llum stigum vi\u00f0 \u00fer\u00f3un s\u00e9rsni\u00f0inna hugb\u00fana\u00f0arvara. Fr\u00e1 UX\/UI-h\u00f6nnuninni n\u00e6r \u00fea\u00f0 inn \u00e1 h\u00e1\u00fer\u00f3u\u00f0 stig k\u00f3\u00f0unar eiginleika. \u00dea\u00f0 b\u00fd\u00f0ur upp \u00e1 fj\u00f6lda \u00e1bata fyrir forritara sem vinna a\u00f0 \u00fev\u00ed a\u00f0 b\u00e6ta DX, en enn mikilv\u00e6gara er fyrir endanotendur. Einn af \u00feessum A11y-\u00fe\u00e1ttum \u00ed HTML eru merkingarfr\u00e6\u00f0ileg merki og \u00fea\u00f0 er \u00fea\u00f0 sem \u00e9g vil fjalla um h\u00e9r.<\/p>","protected":false},"author":2,"featured_media":2973,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-2972","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-software-development"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>3 Useful HTML Tags You Might Not Know Even Existed - The Codest<\/title>\n<meta name=\"description\" content=\"Nowadays, accessibility (A11y) is crucial on all stages of building custom software products.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/thecodest.co\/is\/blogg\/3-gagnleg-html-merki-sem-thu-vissir-kannski-ekki-einu-sinni-ad-vaeru-til\/\" \/>\n<meta property=\"og:locale\" content=\"is_IS\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"3 Useful HTML Tags You Might Not Know Even Existed\" \/>\n<meta property=\"og:description\" content=\"Nowadays, accessibility (A11y) is crucial on all stages of building custom software products.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/thecodest.co\/is\/blogg\/3-gagnleg-html-merki-sem-thu-vissir-kannski-ekki-einu-sinni-ad-vaeru-til\/\" \/>\n<meta property=\"og:site_name\" content=\"The Codest\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-04T08:40:30+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-03-11T05:54:57+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/thecodest.co\/app\/uploads\/2024\/05\/3_useful_html_tags_you_might_not_know_even_existed.png\" \/>\n\t<meta property=\"og:image:width\" content=\"960\" \/>\n\t<meta property=\"og:image:height\" content=\"540\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"thecodest\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"thecodest\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/3-useful-html-tags-you-might-not-know-even-existed\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/3-useful-html-tags-you-might-not-know-even-existed\\\/\"},\"author\":{\"name\":\"thecodest\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/#\\\/schema\\\/person\\\/7e3fe41dfa4f4e41a7baad4c6e0d4f76\"},\"headline\":\"3 Useful HTML Tags You Might Not Know Even Existed\",\"datePublished\":\"2022-10-04T08:40:30+00:00\",\"dateModified\":\"2026-03-11T05:54:57+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/3-useful-html-tags-you-might-not-know-even-existed\\\/\"},\"wordCount\":526,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/3-useful-html-tags-you-might-not-know-even-existed\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/thecodest.co\\\/app\\\/uploads\\\/2024\\\/05\\\/3_useful_html_tags_you_might_not_know_even_existed.png\",\"articleSection\":[\"Software Development\"],\"inLanguage\":\"is\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/thecodest.co\\\/blog\\\/3-useful-html-tags-you-might-not-know-even-existed\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/3-useful-html-tags-you-might-not-know-even-existed\\\/\",\"url\":\"https:\\\/\\\/thecodest.co\\\/blog\\\/3-useful-html-tags-you-might-not-know-even-existed\\\/\",\"name\":\"3 Useful HTML Tags You Might Not Know Even Existed - 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