Yog tias koj tab tom siv cov nplooj ntawv rau phab ntawv-qhov tsis muaj-tsis nyob hauv XHTML , los ntawm txoj kev-nws yog qhov koj yuav paub txog qhov chaw ntxiv ntawm qhov chaw hauv koj qhov layouts. Txhim kho qhov teeb meem no koj yuav tsum xyuas ob koj lub ntsiab lus HTML thiab cov ntsiab lus ntawm cov ntawv ntaus ntawv.
HTML Cov Lus Txhais
Cov HTML tag rau cov ntxhuav los ntawm kev ua neej tsis muaj kev txwv rau qee qhov kev ntaus kis las. Tshawb xyuas peb yam txog cov lus qhia hauv daim ntawv teev lus HTML:
- Koj cov lus puas muaj cov cellpadding attribute teev rau 0?
- cellpadding = "0"
- Koj cov lus puas muaj cov cellspacing attribute teev rau 0?
- cellspacing = "0"
- Puas muaj tej qhov chaw ua ntej los yog tom qab koj cov ntsiab lus thiab cov ntawv cim npe?
Naj npawb 3 yog lub kicker. Muaj ntau tus HTML editors nyiam cov cai tag nrho spaced tawm, kom yooj yim rau kev nyeem ntawv. Tab sis ntau tus browsers txhais tau cov tabs, tej qhov chaw thiab kev thauj khoom rov qab los li xav tau qhov chaw ntxiv hauv koj cov ntxhuav. Tshem cov khaub-ncaws nyob ib puag ncig koj cov cim npe thiab koj yuav muaj cov ntxhuav ntxhuav.
Cov Ntawv Xaiv Tsa
Txawm li cas los, nws yuav tsis yog cov HTML uas tawm. Cascading style sheets tswj qee cov lus qhia ntawm cov ntxhuav thiab nyob ntawm nplooj ntawv, koj yuav yog lossis tsis tau txhob txwm tshaj tawm ntxiv cov lus CSS uas yog thawj qhov chaw.
Luam theej duab CSS cov ntaub ntawv rau ib qho ntawm cov lus hauv qab no hauv lub rooj, th lossis td cov khoom thiab kho raws li xav tau:
- ciam teb qhia meej txog cov cwj pwm ntawm lub rooj los yog lub ciam teb ntawm tes
- ciam teb-cev qhuav dej ciav ciam teb uas nyob ib sab, kom tsis txhob duplicating ciam teb dav
- padding muaj chaw seem, pixels, ncig ntawm txhua lub cell
- text-align txiav txim siab cov ntawv sib dhos ntawm cov ntawv nyeem hauv cell
- ciam teb-ncua kev sib hloov teev ntawm cov hlwb, hauv pixels
Cawm
Txawm hais tias koj tseem siv tau HTML ntxhuav-tus qauv zoo tsim thiab universally txaus siab nyob rau hauv hnub no lub browsers-feem ntau niaj hnub teb Web tsim siv cascading style los xij muab tso rau ntawm nplooj ntawv. Ntxhuav tseem ua rau lawv lub hom phiaj xav ua cov ntaub ntawv tabular, tab sis rau kev npaj qhov teeb tsa thiab cov ntsiab lus ntawm nplooj ntawv, koj zoo dua li siv CSS qhov kev hloov chaw.