Pamaso CSS - choyambirira, omasuka, othandiza

-Zabodza zinthu ndi zoyerekeza-makalasi CSS: patsogolo, pambuyo, fungatirani, yogwira, etc. - mwayi ogwira kusintha khalidwe ndi zinthu zochepa kuphedwa malo, osati kuphatikizapo JavaScript-wothandizira kachidindo pa zoonekeratu, musati amafuna zovuta ziwembu anachita, zinthu zochitika, dialogues ndiponso zochita za mlendo.

Zoyerekeza yabwino, multifunctional, ndi chidwi ndi angapo kusankha katundu kwa ziwaya yosavuta zovuta kukopera: momwe choyambirira Atchule, seamlessly kulongosola zochita chofunika kubweretsa lingaliro mu malo oyenera.

chiyembekezo chachikulu kutsegula pamene mwachindunji url () mu nkhani za zoyerekeza. Ndithudi, njirayi atsegula M'maso latsopano, onse mawu a Download chilichonse tsamba, ndi kutsegula zotheka chilichonse kulikonse

Chinthu chapadera cha zoyerekeza

Zoyerekeza (:: pamaso CSS, :: pambuyo) wosiyana zinthu, selectors ndi zoyerekeza-maphunziro amene sanali poyamba kukhalapo mu chikalata mtengo. Mwina, mu kuchita izo si kwambiri, koma ngati muona mayikidwe a zili pa Tsambali, ndiye kudalira chuma zili chinthu chofunika kwa kufufuza injini sizimatanthauza.

Zoyerekeza :: pamaso CSS limakupatsani kuwonjezera okhutira amafotokozera, ndipo :: pambuyo - pambuyo. Zamkatimu zingasiyane malemba yosavuta masanjidwe lovuta mawu a katundu CSS, koma palibe Tags HTML. Zoyerekeza akhoza mwangwiro pabwino mkati amafotokozera, amene Ufumuyo, chifukwa tanthauzo la isanayambe ndiponso ikatha ndi wachibale yam'manja. Inu simungakhoze basi mwachindunji malo, komanso kukula kwake, mitundu, zikhalidwe, zilembo, ndi ntchito zina za CSS.

Monga osatsimikizika ndi CSS, pamaso ndipo pambuyo ali yoyamba chizindikiro ":" koma CSS3 muyezo analimbikitsa "::". Kuti ayese ntchito inayake pa tsamba sadzamva kuposa ena asakatuli kapena Mabaibulo mwina si muzindikire zoyerekeza makamaka.

General Kagwilitsidwe Nchito

Poika, mwachitsanzo, div mchitidwe kufotokoza kalasi = 'scElement' ndipo zili "mchitidwe" tsamba, kusonyeza mu CSS wamasiku pepala kufotokoza:

.scElement {
POSITION ...;
z-index ...;
...

}

mukhoza ntchito zoyerekeza ": fungatirani" zoyerekeza ndi ":: pamaso" CSS:

.scElement: fungatirani :: pamaso {okhutira: 'manambala oyambirira; mtundu ...; maziko mtundu ...;}.

Ndiye pamene inu fungatirani ndi mbewa Cholozera pamaso mawu 'mchitidwe' adzaoneka mawu 'manambala oyambirira, omwe asintha mtundu wa zilembo ndi maziko.

Kusiyana zili zabodza

Ngati mulibe mwachindunji katundu wawo, adzakhala mofanana ndi mbali yaikulu - scElement. Mukhoza kukhazikitsa ulalo, kenako chuma zili: url ( '/ scBox / RM-g / SC-rights.png') pamene cholozera limasonyeza chifanizirocho mchitidwe wa. Pankhani ya okhutira: "\ 03B1" amapezeka masamu chizindikiro "alfa", koma ntchito zilembo lapadera: "& nbsp;", " & LT;", "& laquo;", "& raquo;" ndi ena satero - iwo adzakhala anasonyeza pamene ali.

Anandilola kwambiri zimene mungachite kuti mwachindunji zili pseudo-: yachibadwa "mawu", url (), ndi ndondomeko ya zilembo hexadecimal, amanena: otsegula amagwira / pafupi-amagwira, kapena amene sali otseguka-amagwira / palibe pafupi-amagwira, etc. Monga kungasonyeze za malo wachilengedwe zili. kudzera katundu kalembedwe, kutsatira kale, CSS udzayika zoyerekeza kulikonse mbali imene izo chikugwirizana.

Mukhoza kuphatikiza ntchito munthawi yomweyo isanayambe kapena itatha. Choncho, kuwayika ntchito CSS pamaso otchulidwa zili mukhoza zosiyanasiyana zotsatira, kaphatikizidwe osiyana-zabodza makalasi wawo-zinthu, kudabwa mlendo, osati kuthera nthawi yomweyo ngakhale limodzi mamvekedwe-kachidindo JavaScript.

NKHANI zoyerekeza

Pakuti mayina awo anatengera ":" khalidwe, komanso kulozera kwa osatsimikizika, koma mosiyana CSS3 zoyerekeza zambiri amaimira "::". Asakatuli kuti mukumvetsa izo, ndazindikira mayina onse. Zopinga ku kujambula sikuloledwa, chingwe akujambulidwa wawo (kapena kokha) zoyerekeza analembedwa pamodzi:

scElement: fungatirani :: pamaso {okhutira: 'manambala oyambirira; ...}

scElement: yogwira: pambuyo {okhutira: 'suffix; ...}

Nkofunika kukumbukira kuti: CSS pamaso kuwachepera malo okhutira. Masitaelo ndi zosagwirizana ndi zomwe zili pa tsamba. Zoyerekeza - yotero. Iwo samapezeka mtengo ufumu ndi osafunika kuwagwiritsa ntchito mu zigawo zogwirizana malo - amanena, iwo sadzalandira.

Ntchito "" ndi "::" imayendetsedwa ndi nsanja m'manja asakatuli ano, koma onani ntchito Mabaibulo akulu nthawi zambiri amachita zosafunika.

zili zabodza-osati m'gulu zili malo a. Iwo sadzaona injini kufufuza. Kodi ntchito chochitika ichi - zimadalira zinthu zenizeni, koma n'zotheka ntchito CSS patsogolo, komanso pambuyo, paokha kapena zovuta ndi chidwi pamene zili ndi url (). ntchito Direct wa zoyerekeza wokhutira maulalo malo, kumulola download wapamwamba Mwachitsanzo, chithunzi.

Mphamvu kusintha owona kalembedwe Intaneti (cascading kalembedwe mapepala owona - nazonso) sikusokoneza mawonekedwe ndi ntchito osatsimikizika ngati zili pa nthawi iliyonse, mu lamanja malo aligorivimu, malingana ndi zochita Alendo.