AmakhompyuthaIsofthiwe

Indlela yokwenza okuya phansi CSS amamenyu

Namuhla sizoxoxa umbuzo "kanjani ngidala okuya phansi CSS amamenyu?". Kufanele uthi ngesikhathi esisodwa ukuthi lento zizokwenziwa ngaphandle yokuxhuma iyiphi imali eyengeziwe. Okungukuthi, abangabantwana imenyu izokwakhiwa kuphela CSS ne-HTML.

ukuqeqeshwa

Ukuze ukuqonde ngokwengeziwe ukuthi yini kulo esihlokweni, udinga kancane ngijwayele impahla theory. Kodwa uma ujwayelene mbumbulu amakilasi, ungeqa lesi sigaba. Ngakho, ukwakha mpo okuya phansi CSS amamenyu, sidinga i-elementi njengoba «: lokuhambisa phezulu». I mbumbulu «: lokuhambisa phezulu» angabelwa kunoma silengiso. It ikuvumela ukuba ichaze okwamanje uma into Hambisa isiliva lakho. Ngokwesibonelo, siye esimisiwe impahla: «a: lokuhambisa phezulu {umbala: abomvu;}». Le entry kusho ukuthi uma udlula i- mouse ke bomvu ku okuqukethwe yimuphi ithegi. Kuyinto ephawulekayo ukuthi lo mshumayeli mbumbulu isici nayo inactivated. By the way, «: lokuhambisa phezulu» useyilandise izakhi ezifanayo. Kepha kusukela kulolu sizodala mbumbulu CSS olukumabhekezansi imenyu.

imfundo

Okokuqala, ake baqonde ukuthi kuyinto imenyu edonsela phansi. Ngaphansi le ncazelo uthola eziningi izindlela ezahlukene ngokwakha izakhiwo ezahlukene. Kulokhu, thina sizohlaziya isakhiwo ehlanganisa izinto eziningana njalo ebonakalayo futhi eziningana ezengeziwe (kufihlwe). Masiqedele nemfundiso futhi baqala ukuqhuba.

  • Sakha isakhiwo imenyu yethu. Ukuze wenze lokhu, i-HTML-ikhodi kophawu. Yakha uhlu isichazi:
      • < / ul>. Okuthile kanje kumele ibukeke imenyu yakho edonsela phansi. CSS ukuba angenele kamuva. Kulokhu ohlwini main siqukethe izici ezintathu eziyinhloko futhi ezimbili afakiwe.
      • Fihla sub-imenyu. Ngenxa yalesi sisebenzisa Olwandisekayo, ukuchaza Izakhiwo ezilandelayo: ul ul {isibonisi: none;} Lokhu kuzosusa izakhi ohlwini lwesibili kusuka esikrinini.
      • Dala CSS imenyu, ziyethe ohlwini main. I amashidi Cascading Style ukubhala mithetho elandelayo: ul li: hambisa ul {isibonisi: block;}. Le entry kusho ukuthi lapho i-mouse liphezu li isici, esemgwaqweni uhlu ul liyavela ul kwesikrini (isifakiwe). Uma uthi nhlá, isikimu ezinjalo kungase kubonakale kuyinkimbinkimbi futhi kuyindida. Kodwa eqinisweni, konke silula.
      • Sebenzisa lesi sakhiwo ngokwakho ngokufaka tags
      • okuqukethwe kwakho. Ungashintsha enanini lama-elementi uhlu.

      izinguquko zokuhlobisa

      Njengoba nje isakhiwo semenyu usulungile, ungakwazi uqhubekele yokubhalisa. Mhlawumbe, abaningi kwasekuqaleni uzimisele ukuqeda izimpawu okubonisa nto yohlu. Lokhu kwenziwa kusetshenziswa impahla CSS olulodwa, okungukuthi uhlu-isitayela-hlobo. Udinga ukufaka i-entry elandelayo: li {uhlu-isitayela-hlobo: none;}. Khona-ke ungakwazi ukufaka uzimele futhi wenze ngemuva. Umngcele futhi ngemuva ukukusiza ngalokhu. Mhlawumbe abanye ngeke uthanda imenyu wokudonsa phansi kuzovela njengoba uhlu ezengeziwe, ukusunduza ngesikhathi izakhi ezifanayo eziyinhloko. Ukuze ulungise lokhu, ungakwazi usibeka endaweni ethile. Ukuze wenze lokhu, Cascading Style Sheets ubhala entry elandelayo: ul ul {isikhundla: ngokuphelele; kwesokunxele: 15px; kwesokudla: 15px; phezulu: 15px; ngezansi: 15px;}. Yiqiniso, amagugu ozoyisebenzisa owakho. Kuye lapho ufuna ukubona kumamenyu eyehlayo, CSS ngeke anikele izici eziningi ukuthi ungakwazi ukwengeza imiphumela ehlukahlukene futhi bahlobise uhlu yethu.

      isiphetho

      Nakulokhu futhi kuyafaneleka ukwakhiwa kusakhiwo imenyu. Ukwabela imithetho CSS lasetshenziswa kule ndaba esishunyekiwe value, isibonelo, ul ul. Uma idokhumenti ukuhlangabezana nezinye isakhiwo esifanayo, kungase kube nezinkinga ezinkulu. Kulezi zimo, udinga ukusebenzisa injongo ethile, isibonelo, kubakhethi noma i-id-ama-ID. Okungenhla sihloko isakhiwo olukumabhekezansi imenyu yakhelwe yazi design jikelele. Ezinye izindaba zika-umsebenzi uhlezi phezu kwamahlombe akho.

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