Kuphuphuma CSS: ukubonisa element umxholo

Uhlobo lwamakhasi ayingxangxasi kulula ukuyisebenzisa, ukuba anithanga ukuya kumahlathi ilifa, ukwabiwa ephambili isakhiwo eklasini, lo nemiba yeengcingane kunye namava ngokoqobo.

Eyona njongo ephambili yale propati ngalinye CSS - isiboniso, kodwa oko akuthethi nje "Ebonakalayo": uyilo Akukho kangako "CSS Ukugcwala ezifihliweyo".

izinto page

Iphepha liqulathe kuphela izinto, oko kungenziwa akhiwe izinto lweziqalelo, nokuba izakhelo (kwaye kunokuba iseti nje kuphela amacandelo, kodwa indawo eyahlukileyo ngokupheleleyo), okanye wenza izinto kwinkqubo yakhe.

Ngokwendalo, uninzi developers amaziko abenza ubeko irabha, ukuba Babengabalelani imiqulu ekhulayo yolwazi kunye nento yokuba ukungakwazi 800 600 ipixels - hayi ngumqobo 640 KB, apho amashumi ambalwa ukoyisa nomqondo ka MS DOS bemeko- kunokuba nzima ubomi badwelisi benkqubo kunye nabasebenzisi iidesktop kuqala.

Esi sakhiwo siza ekuqaleni yonke kulula: page okungalungelaniyo kwiskrini, isikhangeli yenza kube skrolela. Nangona umphuhlisi uyakwazi ukunika umxholo page imveliso kwi window ngaphandle urholela strip kunye akukho ezinye iimpawu: Umxholo page soze kuphuma ngaphaya window eyabelwe kuyo. Oku zendalo, ngaphandle window kukho ezinye izicelo, kunye window umkhangeli zincwadi - akukho ngcono kunabanye iifestile; indlela yokusebenza usoloko kwezicelo ukulingana.

Noko ke, kungakhathaliseki indlela ezibekwe phambili ekukhetheni iindlela layout, enoba kuthunyelwa iindwendwe abanomdla isisombululo screen kangangoko ukujonga iziza, namhlanje kukho screens ezahlukeneyo ninam amathuba buxande ubungakanani ezisisigxina.

Ihlabathi enamandla ngenxa Ukugcwala CSS

Kuthathwa ukuba page isiza - eli umxholo, batwabulule phezu tags iProtokhol, ezicacisayo indlela libonisa indlela kwimeko ethile, phantsi kweemeko ezithile.

Yonke into esoloko itshintsha. Nokuba siza yokuba umxholo wayo alunako ukutshintshwa kule minyaka, akukho siqinisekiso sokuba i-ndwendwe engalindelekanga akayi ukuvula phezu kwisixhobo omtsha, musa nokuzazi umbhekisi phambili wesi website.

Khetha izakhiwo kwimithetho Ukugcwala CSS ibonelela zivumelekile ezine kuphela ukufihla into engaphaya indawo element, ukubonisa, anike urholela njalo okanye kuphela xa kuyimfuneko, okanye ilifa ixabiso evela ukhokho.

Kwimeko yokuqala (uphuphume: efihliweyo), nasiphi na isiqulatho engaphaya nto uya kufihlakala; kodwa wanyamalala, aziyi kufumaneka. Esi sikhundla luyasebenza, kodwa hayi ngaphantsi umdla yeyona ukhetho ukubonisa yonke into ngaphaya (uphuphume: ebonakalayo). Ngoko ke umphuhlisi inika ndwendwe ithuba lokuba kusoloko ulumkele element umxholo ngokupheleleyo kwaye ukulawula izwi layo. amathuba Ambalwa unika msongo (uphuphume: skrola - ibhari mqulu uhlala khona, okanye ikhukule: auto - imivalo umqulu kuvela xa kuyimfuneko).

Features Ukugcwala Imigaqo yokuSebenzisa

", представляют особенный интерес, только когда они представляют собой текст. Izinto ezingaphakathi ithegi elinentsingiselo le CSS "ukuphuphuma kokubhaliweyo", umdla ethile, kuphela xa isicatshulwa. Ukubekwa yamanye amacandelo, ngokuqhelekileyo zigxunyekwe uququzelelo okanye izikhundla isalamane.

izinto zetekisi musa azinakuqulatha inani eliqingqiweyo ngabalinganiswa, kwaye ukuba ufuna ukusebenzisa imithetho ziyaphuphuma, CSS bayalelwe ukuba esweni iinketho utshintsho engalindelekanga umthamo umxholo.

Ngokukodwa, xa ibakala ekucokiseni, ungenza isicelo ixabiso lepropati okanye auto msongo, uze yokutshixa umboniso yonke into engaphaya endle, enika undwendwe iseti yezitshixo, aya kuhamba imixholo ezingabonakaliyo kummandla ebonakalayo. Kuyinto eqhelekileyo. Asingabo bonke bachukunyiswa kunye ibha yokuhamba-hamba, abanye bakhetha ukuba amaqhosha ezine: phezulu, phambili, umva, ukuya ekupheleni.

Ukongeza, umthetho kuphuphuma CSS kwi auto / msongo kuzisa ixabiso sekhasi ukungaqiniseki krakra: ukhutshelo ibhrawuza ephambili umsongo ukusuka kwiphepha element yayo xa ngapha kwesalathisi se mouse.

Xa sakhi ibhloko wombhalo, boni kakhulu kwaye ubenetloni kodwa ukuba yonke ububanzi window ukubeka umtyibilikisi (block elements-imifanekiso), ngoko ukuze soyise isakhiwo oku akusoloko kusenzeka nge mouse idla kuyimfuneko ukusebenzisa "ekuqaleni" okanye "iqhosha ekupheleni iphepha. "

eziza mqulu

iphepha lengxoxo le sayithi kunye undwendwe kubalulekile, kwakunye kuyilo yayo, uphuhliso, umxholo. Ngenxa yokuba isayithi ivula ibhrawuza aze enze oko kwi window enye okanye isithuba esitsha, uya kufaneleka onokulufumana ngokuskrola kufuneka ube iphepha, hayi ilungu layo. Lo wokugqibela kuphela ibe kakhulu, kodwa ke elowo abe umsebenzi walo.

Le sayithi njalo iphatha intsingiselo ethile, nokuba ukuba ngaba kunxulumene intsimi-bulumko, nobugqi, okanye nasiphi na esinye isiqulatho esingenakubonwa kwangaphambili. Yiyo loo nto ke akusoloko kusenzeka ukuba iqalise umthwalo ethile izinto interactive le CSS rule ukuphuphuma.

Ngokukodwa, ukuba sakhi a yomkhethi ukukhetha unyaka (umhla), ngoko umkhethi classical indisokolisa, njengoko uya kumhlangula scrollbar ukuphazamiseka ezicacileyo. Ngokusebenzisa kule kuphuphuma mzekelo, CSS zingasetyenziswa ngempumelelo ukongeza: endle yangaphakathi kwi element, khetha izihlandlo, avumele umtyeleli ngokukhawuleza nangokulula ukhethe umhla oyifunayo, nyanga, nyaka.