Ukusebenzisa izakhiwo CSS "isibonisi: none"

Cascading Style Sheets (CSS) ikuvumela ukuba ahlele ukubukeka kanye nomklamo yekhasi lewebhu. Omunye izakhiwo ezisetshenziswa kakhulu futhi amanani salo "isibonisi: none".

Ukunqunywa izakhiwo

Impahla kukodwa multi-purpose futhi inquma uhlobo isibonisi isici kule dokhumenti. Kuye amagugu ethile ikhasi akhethiwe ingaboniswa ingxenye block, yemigqa, njengoba uhlu lwezinto njengengxenye etafuleni, nokunye. D. Ngakho, ngenxa impahla "isibonisi", ungakwazi ukushintsha uhlobo block kule dokhumenti.

Kepha lenqwaba "enanini lomuzi isibonisi: ngekho", it ikuvumela ukususa into noma block idokhumenti. Endaweni efanayo ngaphansi ucezu khasi agodliwe, okusho ukuthi liphuma ukusakaza. Zonke izici ezingaphezu le "kude", vele akazange akubone ungazinaki nendzawo unit. Ukubuyela into efihliwe, kumele ubheke idokhumenti nge izikriphthi umane ushintshe ukubaluleka izakhiwo ukuze ifomethi oyifunayo. Uma lokhu kwenzeka ngokuzenzakalela ukufometha ikhasi nge into entsha kuso.

Umehluko phakathi izakhiwo "isibonisi" futhi "ukubonakala"

Naphezu kweqiniso lokuthi ngenxa kokubili izakhiwo ukufihla izinto kusukela umsebenzisi, isimiso sabo wokusebenza abaphila ngayo ihluke ngokuphelele. Njengoba sekushiwo ngenhla, ipharamitha "isibonisi: none" kususa isici kusukela idokhumenti. Block liphuma ikhasi, ngaleyo ndlela ngeke ezenzeka kuwo. Kulokhu, into namanje uhlala le-HTML-ikhodi.

Ngakwelinye ihlangothi, impahla "ukubonakala: kufihlwe" kufihla isici kusuka umsebenzisi, kodwa akusisusi kusukela imodeli dokhumenti. Ngakho, i-khasi agodliwe indawo kule block. Okungukuthi, ukugeleza mbhalo ozokwamukela futhi ucabangele indawo kanye nosayizi into nge impahla "ukubonakala: kufihlwe" ngendlela efanayo ngaphandle kwalo.

Lokhu Umehluko isakhiwo idokhumenti inhlangano lezi izakhiwo ezimbili kwenza kube nokwenzeka ukuba sifinyelele elamukelekile elungile ikhasi ukubonisa.

Ukusebenzisa CSS - isibonisi: none

idokhumenti Inthanethi zikhona izindlela eziningana ukuze ubone ukuthi iyiphi impahla timphawu. Eyokuqala isibonisi: ayikho ebekiwe ifayela ehlukile Cascading Style Sheets. Le ndlela iyona eziphambili kakhulu futhi engcono, njengoba ikuvumela ukuba wenze zonke kubakhethi, amakilasi kanye izakhiwo zabo umbhalo oseceleni. umfuziselo okunjalo ikuvumela ukuba uthole ngokushesha futhi ushintshe izilungiselelo ikhasi.

Unhlokweni idokhumenti

Samuntu yesibili ukuchaza izitayela phakathi isihloko tags idokhumenti isitayela. Ukuphumelela le ndlela kuyinto kakhulu. Kunconywa ukusebenzisa kuphela ezimweni ezimbi kakhulu, njengoba ebukhoneni inqwaba izitayela efundeka zamakhasi ewebhu umklami liwohloka kakhulu. Futhi lokhu kuholela amaphutha kanye ukubambezela yonke inqubo yokuthuthukisa amakhono idokhumenti sewebhu. Lendlelanchubo yakhiwe kuphela Kunconywa esimweni kwengezwa umaki inombolo encane izitayela noma ukulungisa iphutha yomculo.

Khumbula ukuthi uma ngale ndlela yokuhlela izitayela kule dokhumenti esingaphansi ahlukene isitayela seshidi nokungenisa, izakhiwo ezedlulayo izocishwa yilabo ezisesandleni umzimba html dokhumenti.

Block div. Khombisa: none

Enye indlela iwukuba ukwengeza ngqo ithegi "style = isibonisi: none;" ikhodi isici. Le ndlela ngokuvamile sisetshenziswa uma usebenza nge nezinhlaka ezehlukene, injongo okuyinto - ukunciphisa isibalo izici ngqo Olwandisekayo futhi sizibonise idokhumenti sewebhu. Ngaphezu kwalokho, umlando onjalo wenza abantu ngokuvamile uma ubuka ikhasi "ikhodi abahloli". Kubalulekile ukukhumbula ukuthi lapho besebenzisa le ndlela, ungakwazi ukushintsha impahla kanye nenani engamiswanga Olwandisekayo. Ngakho-ke kufanele uqaphele, ngenxa yalokho, ungakha izinkinga ezengeziwe bona futhi bachithe isikhathi esithile lapho emthola futhi ukulungisa amaphutha ikhodi ikhasi.

i-JavaScript

Kubalulekile kokukhuluma kungenzeka kunoshintsho kule impahla. Libhekisela ayisekho kuya Olwandisekayo kanye html-ikhodi bese ulimi scripting. Ngakho-ke, ukusebenzisa kubalulekile ukuba okungenani amanye ulwazi kule ndawo. Ukuze ususe element kusukela ukugeleza mbhalo, ungasebenzisa impahla i-JavaScript "isibonisi = noyedwa". It ikuvumela ukuba ushintshe isakhiwo idokhumenti lapho umcimbi othile. Futhi, ngokusebenzisa imibhalo ngamandla ( "on the fly") ukushintsha izakhiwo ipharamitha futhi ngaleyo ndlela uvuselele umbono kwekhasi ngaphandle kokuthi ulayishe. Le ndlela ewusizo lapho uhlela olukumabhekezansi Amamenyu, amafasitela eyisibonelo kanye namafomu.

SEO

Emkhakheni wezingalo iqhakambisa okuqukethwe kwewebhu izinjini, kukhona izinhlobonhlobo zokuthembela ezeni eziningi nokungaqiniseki. Ngakho, SEOs eziningi imfundamakhwela cabangela ukusetshenziswa izakhiwo "isibonisi" ukuziphatha okubi. Bayachaza lokhu ngenxa yokuthi izinjini babona okuqukethwe ezifihliwe, baqala cabanga ikhasi njengogaxekile. Lokho abakushoyo, kukhona ezinye logic, kodwa hhayi okunye. Kuleli qophelo ngesikhathi impahla izinto ezifihliwe esetshenziswa njalo ngokwanele ukufometha imenyu yokudonsela phansi uphinde ufihle izingxenye zedokhumenti, okuyinto okwamanje nesithakazelo umsebenzisi (isibonelo, uma ukhetha isigaba neminye imininingwane isuswe). Le ndlela isebenzisa ngokwanele ezinamandla ze-Intanethi (omunye wabo - the "Amazon"). Ngakho, injini izicabucabu ayikwazi cabangela ukusetshenziswa kwempahla "isibonisi: none" ogaxekile.

Enye into, uma le ndlela isetshenziswa ukufihla amagama athile nezindlela asetshenziswa izinhlamvu. Naphezu kweqiniso lokuthi manje izicabucabu injini Awunayo okwamanje ukuqashelwa esiphelele ezinjalo "ugaxekile" algorithm e imibhalo, amathuba lelo khasi uyobanjwa lokhu, impela high. Ngakho-ke Kunconywa ukuba asebenzise impahla "isibonisi" esokuba inhloso yazo - ukushintsha uhlobo block noma okwesikhashana ukufihla emehlweni umsebenzisi.