Indlela yokwenza uludwe oluphahlayo kwi-HTML

Uluhlu olulula lokuhla kwe-HTML lulula ukudala usebenzisa itekisi yokukhetha. Le nto ithegi yeconti, iithegi zokukhetha zifakwe kuyo - zicacisa izinto zohlu.

Kukho iintlobo ezahlukeneyo zeentlu ezingenziwa ngokusebenzisa iteksi yokukhetha: uluhlu lokuhlahla (iindawo ezikhethiweyo emva kokuchofoza kwintsimi ephezulu okanye ukukhomba kuyo ngekhesa) kunye nohlu lwezinto ezininzi zokukhetha - kulo msebenzisi unokukhetha izinto ezininzi. Eyokuqala ziqhelekileyo, ziyinxalenye ebalulekileyo yokuhamba kweziza zanamhlanje. Uhlu lokuhla kwezinto ezikhethiweyo lunokusetyenziswa, umzekelo, kwiilawuni apho iimpawu zeemveliso ezininzi kufuneka zikhethwe.

Ungatshintsha ukubonakala kunye neepropati zeenlist usebenzisa iimpawu ezizodwa kunye nezizodwa.

Iimpawu zeetaki ezikhethiweyo

1. Amaninzi - abeka ukhetho oluninzi.

2. Uluhlu - luchaza inani lemigca ebonakalayo eluhlu, oko kukuthi, ukuphakama. Kwaye yonke into ixhomekeke ekubeni ingaba impawu iyininzi okanye ayikho. Ukuba u-ewe, kwaye ungacacise ubungakanani, ukuba ngaba kukho ezininzi, umsebenzisi uza kubona zonke izinto ezikhethwa kukho, kodwa ukuba azininzi, umgca owodwa kuphela uya kuboniswa, kwaye bonke abavakalisi baya kukwazi ukuwafunda xa ecinezela uphawu lokuphakamisa ngakwesokudla. Ukuba ukuphakama kobukhulu kubalulwe kwaye kungaphantsi kwenani lezinketho, ibha yomqulu iya kuvela ngakwesokudla.

3. Igama ligama. Uluhlu lokuhla kwehla lungenza ngaphandle kwalo, kodwa kunokuba kuyimfuneko ukusebenzisana nomphathi kumncedisi. Njengomthetho, igama liyabonisa.

Ithegi ekhethiweyo ayinayo iimpawu ezigunyazisiweyo, ngokungafani net tag yokukhetha.

Iimpawu zetekethi yokukhetha inyulu

1. Ekhethiweyo - eyenzelwe ukugqamisa uluhlu lwempahla. Umsebenzisi unokukhetha ngaphezulu kweyodwa into ukuba impawu ezininzi zichazwe (jonga ngasentla).
2. Ixabiso lixabiso. Le mfanelo iyadingeka. Umncedisi wewebhu kufuneka aqonde izinto ezikhethwe ngumsebenzisi.
3. Ileta. Ngalo mboniso, unokunciphisa uluhlu lwezinto ezide kakhulu. Ngokomzekelo, isikrini siza kubonisa "iMilan", esikhundleni se "Milan - isikhungo sokulawula saseLombardy" inketho echazwe kwithegi. ENyakatho yeItali ". Esi sibonakaliso sisetyenziselwa ukuthenga izinto kwiqela.

Ngokubanzi ububanzi beloluhlu, lubekwe ngokungafani ngokubude bombhalo obanzi kuloluhlu. Ewe, ububanzi bungatshintshwa ngokusebenzisa izitayela ze HTML.

Uluhlu lokuhlahla ngezinye iindlela

Ingenziwa ngokusebenzisa i-CSS, umzekelo, uluhlu luya kuvela xa uhambisa isikhombisi kwiqhosha lephepha. Amathuba amahle kakhulu ekudaleni uluhlu anikezelwa yiJavaScript, umsebenzi wakhe ulula lula ithala leencwadi. Uluhlu lokuhlahlayo oluxhunyiwe ngokusebenzisa le la yibrari lunokuba luyinkimbinkimbi kakhulu, umzekelo, i-cascade. Okokuthi, xa ukhetha into eluhlu olulodwa, uluhlu olulandelayo lubonakala, umzekelo, kukho into yemenyu "Iingubo Zomfazi" (xa uhamba, iintlobo zeengubo ziwa ), ngoko ke xa ukhetha enye yeentlobo, umzekelo, "Uhlobo lwangaphandle", uludwe lwezinto: Iipaki, iingubo, iingubo ezimfutshane, iingubo zoboya, njl.

Thina sichaze ngokubanzi iindlela eziphambili onokudala uluhlu lokuhlahla. Ngokuqinisekileyo, kukho amanqaku amaninzi kwi- HTML, kwi-CSS naseJavaScript, evumela ukuba utshintshe ukusebenza nokubonakala kweenhlu.