Siv cov ncua sij hawm thiab div nrog CSS rau ntau dua cov qauv thiab kev tswj kev teeb tsa.
Muaj ntau tus neeg uas tuaj tshiab rau web tsim thiab HTML / CSS siv Lub tswv yim div txhais cov kev tshawb xyuas logical ntawm koj qhov web page. Nws yog ib lub thawv uas koj tuaj yeem tso tau lwm cov ntsiab lus HTML uas siv tawm ua ke. Ib qho kev sib faib muaj peev xwm ua tau ntau yam hauv nws, xws li cov ntawv, lub npe, cov npe, cov kev sib txuas, cov duab, thiab lwm yam. Nws muaj peev xwm txawm muaj lwm cov kev faib hauv nws los muab cov qauv ntxiv thiab cov koom haum rau koj cov ntawv HTML. Siv cov div div, tso qhov qhib txheem ntawm div Yog hais tias cheeb tsam ntawm koj nplooj ntawv xav tau ib co ntaub ntawv ntxiv uas koj yuav siv rau cov style nrog CSS tom qab, koj tuaj yeem ntxiv ib qho kev xaiv tus id (xws li, id = "myDiv">), los sis hoob xaiv (eg, class = "bigDiv">). Ob qho tib si ntawm cov cwj pwm no yuav tau xaiv siv CSS lossis hloov kho JavaScript. Cov kev xyaum zoo tshaj tam sim no los ntawm kev siv hoob xaiv cov xaiv tsis yog tus ID, nyob rau hauv ib feem vim li cas cov neeg xaiv cov ID yog. Hauv qhov tseeb, txawm li cas los xij, koj siv tau ib qho thiab txawm tuaj yeem muab faib rau ib daim ID thiab ib tus neeg xaiv hoob kawm. Thaum twg Siv Lub caij div yog txawv los ntawm cov tshooj lus HTML5 vim nws tsis muab cov ntsiab lus hauv cov ntsiab lus ntawm cov ntsiab lus tseem ceeb. Yog tias koj tsis paub meej tias qhov block ntawm cov ntsiab lus yuav tsum yog div los yog ib seem, xav txog seb lub ntsiab ntawm lub ntsiab thiab cov ntsiab lus yog los pab koj txiav txim siab uas siv: Thaum kawg, ob qho tib si divs thiab cov tshooj coj zoo nkauj zoo ib yam thiab koj tuaj yeem muab ib qho ntawm lawv tus cwj pwm qhov tseem ceeb thiab ntaus lawv nrog CSS kom pom qhov chaw koj xav tau. Ob qho no yog cov theem ntawm cov qib. Lub ncua sij hawm yog ib qho kev cob qhia ua ntej. Qhov no teev nws sib nrug ntawm div thiab seem hais. Lub caij nyoog feem ntau yog siv los qhwv ib qho ntsiab lus ntawm cov ntsiab lus, feem ntau cov ntawv nyeem, kom muab ib qho "sib txuas" ntxiv uas yuav muaj peev xwm tom qab. Siv nrog CSS, nws tuaj yeem hloov qhov style ntawm cov ntawv nws nkag; txawm li cas los xij, tsis muaj cov ntsiab lus ntawm cov ntsiab lus, lub caij nyoog tsis muaj kev cuam tshuam rau cov ntawv nyeem txhua. Qhov no yog qhov txawv ntawm qhov ncua sij hawm thiab qhov div ntsiab. Raws li tau hais los saum toj no, lub caij div muaj cov ntsiab lus caij so, thaum lub caij nyoog tsuas yog qhia rau tus browser siv cov cai CSS style cov kev cai rau dab tsi muaj li ntawm tags: Highlighted text thiab cov ntawv tsis tseem ceeb. Ntxiv rau chav kawm = "highlight" los sis lwm hoob kawm rau cov kev sau cov ntawv nyeem nrog CSS (xws li, chav kawm = "highlight">). Lub ncua sij hawm tsis muaj qhov yuav tsum tau muaj, tab sis peb uas yog qhov tseem ceeb tshaj plaws yog tib yam li cov hauv div lub hauv paus: Siv kev ncua sij hawm thaum koj xav hloov cov ntsiab lus ntawm cov ntsiab lus uas tsis muaj cov ntsiab lus uas yog qhov tshiab ntawm cov ntawv sau nyob hauv daim ntawv. Piv txwv, yog tias koj xav tau lo lus thib ob ntawm lub h3 taw mus ua xim liab, koj tuaj yeem puag ncig lo lus ntawd nrog lub caij nyoog uas yuav siv lo lus no ua cov ntawv liab. Lo lus tseem tseem yog ib feem ntawm lub h3 cov element, tab sis tam sim no kuj qhia nyob rau hauv liab: Edited by Jeremy Girard rau 2/2/17 Siv lub
Siv lub Element
Qhov no yog Kuv Lub Npe Tiab