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Video: Qhov twg yog txoj hauv kev zoo tshaj plaws los tshaj tawm tias koj nplooj ntawv siv html5 raws tu qauv?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2024-01-18 08:24
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- Zoo tshaj / Txoj hauv kev kom tshaj tawm tias koj nplooj ntawv siv HTML5 raws tu qauv
- Zoo tshaj / txoj kev tshaj tawm uas lus rau koj paj yog lus Askiv
- Zoo tshaj / txoj kev raug tsim meta-data rau koj paj
Tsis tas li ntawd, qhov tseeb doctype nqe lus rau html5 yog dab tsi?
Hauv HTML 4.01, qhov <! DOCTYPE > tshaj tawm hais txog DTD, vim HTML 4.01 yog raws li SGML. Lub DTD qhia cov cai rau cov lus cim, kom cov browsers ua cov ntsiab lus kom raug . HTML5 tsis yog raws li SGML, thiab yog li tsis tas yuav tsum tau siv rau DTD.
Tsis tas li ntawd, lub hom phiaj ntawm daim ntawv tshaj tawm doctype yog dab tsi? Cov DOCTYPE tshaj tawm Nws yog ib qho kev qhia rau lub web browser txog dab tsi version ntawm HTML nplooj ntawv sau nyob rau hauv. Hauv HTML 4.01, the DOCTYPE tshaj tawm hais txog cov ntaub ntawv hom txhais (DTD).
Tom qab ntawd, ib tus tuaj yeem nug, Kuv yuav ua li cas thiaj paub yog tias kuv siv html5?
Kom paub meej yog ib lub vev xaib yog HTML5 los yog 4.01, kuaj doctype nyob rau sab saum toj ntawm lub vev xaib hauv qhov chaws saib. Teb ( HTML5 ): Tam sim no cov cai: Qhib ib qho ntawm koj lub vev xaib hauv koj tus browser (IE, Chrome, Edge, Safari), nqaim qhov browser mus txog 320 pixels dav.
Nws puas tsim nyog sau doctype hauv HTML?
peb yuav tsum ib txwm siv a DOCTYPE rau txhua tus browser raws li Nws qhia qhov browser yuav txhais li cas html thiab css. Cov <! DOCTYPE > kev tshaj tawm yuav tsum yog thawj qhov hauv koj HTML cov ntaub ntawv, ua ntej lub < html > tag.
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