Siv lub zog ntawm cov CSS "zaub: tsis muaj leej twg"

Lam Style ntawv (CSS) tso cai rau koj los tswj cov tsos thiab tsim ntawm lub web page. Ib qho ntawm feem ntau siv lub zog thiab nws tseem ceeb yog "zaub: tsis muaj leej twg".

Kev txiav txim ntawm lub zog

Cov cuab yeej nws tus kheej yog ib tug multi-purpose thiab txiav txim seb tus yam ntawm cov zaub lub caij nyob rau hauv cov ntaub ntawv. Nyob ntawm seb cov kev tseem ceeb xaiv nplooj yuav muab tso tawm kom lub thaiv feem, linearly, raws li ib daim ntawv teev cov khoom raws li ib feem ntawm lub rooj, thiab hais txog. D. Yog li, vim cov cuab yeej ntawm "zaub", yuav tau hloov lub hom ntawm cov thaiv nyob rau hauv cov ntaub ntawv.

Raws li rau lub nras "tus nqi ntawm cov cuab yeej zaub: tsis muaj leej twg", nws tso cai rau koj mus rho tawm tau ib yam khoom los yog ib ntu ntawm daim ntawv. Nyob rau tib lub qhov chaw nyob rau hauv daim ntawm nplooj ntawv yog tsis tseg, uas txhais tau tias nws ntog tawm ntawm lub kwj. Tag nrho tej yam uas dhau lub "tej thaj chaw deb", tsuas tsis pom nws thiab las mees qhov luaj li cas thiab txoj hauj lwm ntawm lub tsev. Rov qab mus rau ib tug thaum kwv, koj yuav tsum xa mus rau hauv cov ntaub ntawv ntawm scripts uas tsuas hloov tau tus nqi ntawm cov khoom rau lub yam hom ntawv. Thaum zoo li no tshwm sim txiav format cov nplooj ntawv nrog cov kwv tshiab rau nws.

Qhov txawv ntawm cov khoom "zaub" thiab "visibility"

Txawm tias muaj tseeb hais tias raws li ib tug tshwm sim ntawm tag nrho ob qho zog mus nkaum cov khoom los ntawm cov neeg siv, lawv lub ntsiab cai ntawm lub lag luam yog heev txawv. Raws li twb hais saum toj no, lub parameter "zaub: tsis muaj leej twg" tuskheej lub caij ntawm cov ntaub ntawv. Qhov thaiv ntog tawm ntawm cov nplooj ntawv, yog li tsis noj qhov chaw nyob rau hauv nws. Nyob rau hauv cov ntaub ntawv no, tus kwv tseem nyob rau hauv lub HTML-code.

Nyob rau hauv lem, cov cuab yeej "visibility: muab zais" hides lub caij ntawm tus neeg siv, tab sis tsis tshem tawm nws los ntawm cov ntaub ntawv qauv. Yog li, cov nplooj ntawv yog reserved ib qho chaw nyob rau hauv no block. Hais tias yog, tus ntawv txaus yuav lees txais thiab xav txog qhov chaw nyob thiab loj ntawm ib tug caij nrog tej khoom vaj tse "visibility: muab zais" raws nraim tib txoj kev tsis muaj nws.

Qhov no txawv yog lub koom haum cov qauv ntawm daim ntawv no ob zog ua rau nws tau mus cuag tej yam tshwm sim rau qhov tseeb nplooj zaub.

Siv CSS - zaub: tsis muaj leej twg

Internet daim ntawv muaj ob peb txoj kev los mus txiav txim lub zog ntawm cov caij. Tus thawj cov zaub: tsis muaj leej twg muaj peev xwm yuav kho nyob rau hauv ib tug nyias muaj nyias ib cov ntaub ntawv rau kev lam Style ntawv. Qhov no yog cov ntau tshaj thiab qhov zoo tshaj plaws, raws li nws tso cai rau koj ua kom tag nrho cov selectors, cov chav kawm thiab lawv lub zog nyob rau hauv ib tug nyias muaj nyias ib daim ntawv no. Xws li ib tug qauv tso cai rau koj mus nrhiav tau sai sai thiab hloov page chaw.

Cov ntaub ntawv header

Qhov thib ob embodiment yog txhais kom meej yeej ntawm cov npe ntawm cov ntaub ntawv style cim npe. Cov hauj lwm zoo ntawm no txoj kev yog tsawg npaum li cas. Nws yog pom zoo kom mus thov xwb nyob rau hauv huab mob, raws li nyob rau hauv lub xub ntiag ntawm ib tug loj tus naj npawb ntawm yeej readability ntawm nplooj ntawv Web site designer deteriorates ho. Thiab qhov no ua rau kom raug thiab qeeb tus txheej txheem ntawm kev tsim ib tug web daim ntawv. Qhov no mus kom ze yog tsuas yog pom zoo nyob rau hauv cov ntaub ntawv ntawm kev ntxiv lub tag mus rau ib tug me me muaj pes tsawg tus ntawm yeej los yog debugging ntsuas.

Khaws nyob rau hauv lub siab hais tias yog li no ntawm Workers yeej nyob rau hauv cov ntaub ntawv yog tsawg tshaj li ib daim style daim ntawv ntshuam, lub overlapping zog yuav overwritten los ntawm cov neeg uas yog nyob rau hauv lub cev ntawm cov ntaub ntawv html.

Thaiv div. Zaub: tsis muaj leej twg

Lwm txoj kev yog mus ntxiv ncaj qha mus rau lub tag "style = zaub: tsis muaj leej twg;" code caij. Qhov no mus kom ze yog feem ntau siv thaum ua hauj lwm nrog ntau yam coj, lub hom phiaj ntawm cov uas - txo tus naj npawb ntawm cov nta ncaj qha mus rau hauv lub stylesheet thiab tso saib lawv nyob rau hauv lub web daim ntawv. Nyob rau hauv tas li ntawd, xws li ib tug cov ntaub ntawv yog feem ntau thaum menyuam "code inspectors" page. Nws yog ib qho tseem ceeb rau koj nco ntsoov tias siv no mus kom ze, koj muaj peev xwm hloov cov cuab yeej thiab cov nqi tshuaj nyob rau hauv lub stylesheet. Yog li ntawd koj yuav tsum tau ceev faj, raws li ib tug tshwm sim, koj muaj peev xwm tsim ntxiv teeb meem rau lawv tus kheej thiab siv ib co sij hawm nyob rau kev nrhiav thiab kho kom raug nyob rau hauv cov nplooj ntawv code.

JavaScript

Nws tseem yog muaj nqis mentioning tau ntxiv cov kev hloov nyob rau hauv cov cuab yeej no. Nws yog hais txog tsis mus rau lub stylesheet thiab html-code thiab ib tug scripting lus. Yog li ntawd, mus thov nws yog tsim nyog los muaj tsawg kawg yog ib co txuj ci nyob rau hauv cheeb tsam no. Nyob rau hauv thiaj li yuav tshem tawm cov keeb los ntawm cov ntaub ntawv txaus, koj yuav tau siv ib JavaScript vaj tse "zaub = tsis muaj leej twg". Nws tso cai rau koj yuav hloov cov qauv ntawm cov ntaub ntawv thaum muaj tej yam kev tshwm sim. Tsis tas li ntawd, los ntawm kev siv ntawm scripts rau dynamically ( "rau tus yoov") los mus hloov lub parameter zog thiab yog li ua tshiab hauv lub view ntawm cov nplooj ntawv tsis muaj reload. Qhov no mus kom ze yog pab tau thaum Workers nco-down menus, modal qhov rais thiab cov ntaub ntawv.

SEO

Nyob rau hauv lub teb ntawm optimizing web cov ntsiab lus rau kev nrhiav xyaw, muaj ntau ntau yam superstitions thiab uncertainties. Yog li ntawd, muaj ntau yam novice SEOs xav txog qhov siv ntawm cov khoom "zaub" phem tus cwj pwm zoo. Lawv piav txog qhov no los ntawm qhov tseeb hais tias kev tshawb fawb xyaw pom thaum cov ntsiab lus, pib mus xav txog qhov page li spam. Nyob rau hauv lawv cov lus, muaj ib co logic, tab sis tsis npaum li cas ntxiv. Thaum no tus taw tes nyob rau hauv lub sij hawm cov cuab yeej ntawm muab zais tej khoom siv feem ntau txaus rau format txoj kev nco-down ntawv qhia zaub mov thiab nkaum rau qhov chaw ntawm cov ntaub ntawv, uas tsis yog tam sim no txaus siab rau tus neeg siv (piv txwv li, thaum koj xaiv ib qeb ntawm lwm yam ntaub ntawv yog deleted). Qhov no mus kom ze siv ib tug txaus haib Internet portals (ib tug ntawm lawv - lub "Amazon"). Yog li, kev tshawb fawb cav kab laug sab yuav tsis xav txog qhov siv ntawm tej khoom "zaub: tsis muaj leej twg" spam.

Lwm yam, thaum zoo li no mus kom ze yog siv los zais ib tug neeg cov lus thiab cov cim. Txawm tias muaj tseeb hais tias tam sim no cov kev tshawb fawb cav kab laug sab tsis tau muaj zoo meej paub txog xws "spam" algorithms nyob rau hauv cov ntaub ntawv, yuav uas page yuav raug ntes tau nyob rau hauv no, yog heev siab heev. Yog li ntawd nws yog pom zoo kom siv cov cuab yeej "zaub" yog nruj me ntsis rau nws npaj lub hom phiaj - los mus hloov lub hom thaiv los yog ib ntus nkaum los ntawm lub qhov muag ntawm tus neeg siv.