Ntchito katundu wa CSS "anasonyeza: palibe"

Cascading kalendala Mapepala (CSS) amakulolani bungwe maonekedwe ndi kamangidwe ka tsamba. Mmodzi wa katundu zofala kwambiri ntchito ndi makhalidwe ake ali "anasonyeza: palibe".

Khama la katundu

Chuma pawokha ndi Mipikisano cholinga kudziŵa mtundu wa chinthu oonetsa chikalatacho. Malinga mfundo mndandanda anasankha tsamba akhoza kuwonetsedwa chipika gawo linearly, monga mndandanda wa zinthu monga gawo pa tebulo, ndi zina zotero. D. Choncho, chifukwa chuma cha "kuwonetsera" angasinthe mtundu wa njerwa mu mpukutuwu.

Koma mtolo "Mtengo wa katundu anasonyeza: palibe" timatha inu kuchotsa ndi item kapena chipika kwa bukuli. Pa malo omwewo pansi pa chidutswa cha tsamba ndi palibiretu, kutanthauza imagwera mwa mtsinjewo. zinthu zonse ali kutsidya lina la "kutali", chabe sindinali kuziwona izo ndi kunyalanyaza kukula ndi malo a pachikhalidwe ndi. Kubwerera chinthu chobisika, muyenera amanena kuti bukuli kudzera zolembedwa chabe kusintha mtengo wa katundu kwa mtundu ankafuna. Zikatero basi mtundu tsamba ndi chinthu chatsopano pa izo.

Kusiyana pakati pa katundu "kuwonetsera" ndi "aone"

Ngakhale kuti chifukwa cha katundu onse kubisa zinthu zan, mfundo awo a ntchito ndi yosiyana. Monga tanenera kale pamwambapa, chizindikiro "anasonyeza: palibe" amachotsa amafotokozera kwa bukuli. chipika ukugwa kuchokera tsamba, osati zikuchitika mu izo. Pankhaniyi, chinthu Zatsala mu HTML-code.

Nawonso chuma "aone: zobisika" amabisa zinthu zan, koma sikungachotse ku chikalata chitsanzo. Choncho, tsamba uwasungikira malo mu chipika izi. Ndiko kulandira chikalata azavomela ndi kuganizira malo ndi kukula kwa mchitidwe wa ndi chuma "aone: zobisika" m'njira yofanana popanda izo.

Kusiyana kumeneku ndi kapangidwe gulu la chikalata cha katundu awiriwa limachititsa kuti tikwaniritse zotsatira anafuna olondola tsamba kudzionetsera.

Kugwiritsa CSS - anasonyeza: palibe

chikalata Internet pali njira zingapo kudziwa katundu wa mchitidwe wa. Woyamba anasonyeza: palibe mankhwala mu file osiyana Cascading kalendala Mapepala. Njira imeneyi ndi zapamwamba kwambiri ndi zabwino, monga timatha inu kuti onse selectors, makalasi ndi katundu wawo m'chikalata osiyana. Chotero chitsanzo limakupatsani mwachangu ndi kusintha zoikamo page.

Chamutu chikalata

Chimake chachiwiri ndi kuthandauza masitaelo mwa mutu wa Tags chikalata kalembedwe. Mphamvu ya njira imeneyi ndi zochepa kwambiri. Ndi bwino kugwiritsa ntchito pokha pokha kwambiri, monga mu kukhalapo kwa ambiri masitaelo aziwakonda tsamba mlengi chatsitsa kwambiri. Ndipo zimenezi zimapangitsa kuti zolakwa ndi m'mbuyo ndondomeko kukhala chikalata intaneti. Njira imeneyi tikulimbikitsidwa okha nkhani ya kuwonjezera opatsidwa kwa ochepa masitaelo kapena debugging chida.

Kumbukirani kuti ngati njira iyi yokonza masitayilo chikalata ndi zosakwana osiyana kalembedwe pepala inatha, katundu kulowererana adzakhala overwritten anthu amene ali thupi la chikalata HTML.

Block div. Sonyezani: palibe

Njira ina ndi kuwonjezera mwachindunji opatsidwa "kalembedwe = anasonyeza: palibe;" malamulo amafotokozera. Njira imeneyi amagwiritsidwa ntchito kawirikawiri pamene ntchito ndi frameworks zosiyanasiyana, cholinga chimene - kuchepetsa chiwerengero cha mbali mwachindunji mu stylesheet ndi kusonyeza iwo mu chikalata intaneti. Komanso, ngati mbiri zambiri pamene kuonera "kachidindo ochita chipikisheni" page. Nkofunika kukumbukira kuti ntchito njira imeneyi, mungathe kusintha katundu ndi phindu zinafotokozedwa stylesheet lapansi. Choncho muyenera kusamala, chifukwa, inu mukhoza kulenga mavuto ena okha, mukacheze pa kupeza ndi kukonza zolakwika Mpambo page.

JavaScript

Ndi ponena kuti n'zotheka kusintha zina mwa katundu uyu ofunika. Zimatanthauza salinso ku stylesheet ndi HTML-malamulo ndi chinenero malembedwe. Choncho, kuziyika izo m'pofunika kukhala osachepera ena chidziwitso mbali imeneyi. Pofuna kuchotsa chinthu ku otaya chikalata, mungagwiritse ntchito JavaScript chuma "anasonyeza = palibe". Iwo amalola kusintha dongosolo la chikalata pamene chochitika ena. Komanso, pogwiritsa ntchito zolembedwa kuti pompopompo ( "pa ntchentche") kusintha katundu chizindikiro ndipo potero polimbikitsa maganizo a tsamba popanda kutsegulaso. Njira imeneyi ndi zothandiza pamene bungwe mindandanda yazakudya dontho-pansi, modal mazenera ndi mawonekedwe.

SEO

M'munda wa optimizing ukonde okhutira kwa injini kufufuza, pali zikhulupiriro zambiri ndiponso tsoka. Choncho, ambiri novice SEOs kuganizira kugwiritsa ntchito katundu "kuwonetsera" khalidwe loipa. Iwo amafotokozera chifukwa chakuti kufufuza injini kuona zili chobisika, anayamba kuganizira tsambali monga sipamu. M'mawu awo, pali mfundo zomveka, koma osati kwambiri wina. Pa mfundo imeneyi nthawi chuma cha zinthu zobisika ntchito kawirikawiri zokwanira mtundu dontho-pansi menyu ndi kubisa mbali ya chikalata, amene si panopa chidwi wosuta (mwachitsanzo, pamene inu sankhani gulu la nkhani zina zichotsedwa). Njira imeneyi amagwiritsa mokwanira amphamvu Internet makonde (mmodzi wa iwo - ndi "Amazon"). Choncho, kufufuza injini akangaude simungathe kulingalira ntchito katundu "anasonyeza: palibe" sipamu.

Chinthu china, pamene njira imeneyi ntchito kubisa mawu ena ndi zilembo. Ngakhale kuti tsopano kufufuza injini akangaude alibe kuzindikira wangwiro za "sipamu" ma aligorivimu mu mabukhu, n'zotheka kuti tsamba adzagwidwa izi, si mkulu. Choncho tikulimbikitsidwa kugwiritsa ntchito chuma "kuwonetsera" ndi pongofuna cholinga chake - kusintha mtundu wa njerwa kapena mongoyembekezera kubisa kwa maso a wosuta.