我不知道如何更改 html 的背景。這不僅僅是您可以替換的圖片。有人可以指出我應該照顧的部分嗎？我得到的只是一些 css 檔案和影像檔案夾。我一直在尋找一段時間，我有幾個小時向某人介紹這個網站，我不喜歡它的藍色背景。
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<title>Lumea Criptomonedelor</title>
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<a class="navbar-brand animated " href="#head-area "><img src="assets/images-3d-animation/logo.png " alt="Crypto Logo "/><span class="brand-text ">Lumea Criptomonedelor </span></a>
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<a class="nav-link " href="index.html#about ">Home</a>
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<a class="nav-link " href="bitcoin.html ">Bitcoin</a>
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<a class="nav-link " href="ethereum.html ">Ethereum</a>
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<a class="nav-link " href="ripple.html ">Ripple</a>
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<form class="form-inline mt-2 mt-md-0 ">
<a class="btn btn-sm btn-gradient-purple btn-glow my-2 my-sm-0 animated " href="despre.html ">Despre</a>
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<h6 class="sub-title ">Introducere</h6>
<h2 class="title ">Ce sunt criptomonedele?</h2>
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<p class="content-desc animated " >Criptomoned? sau criptovalut? este un tip de moned? digital?, virtual?, o moned? surogat, nebancar?, folosit? ca mijloc de plat?. Denumirea de criptomoned? indic? faptul c? acest mijloc de plat? utilizeaz? criptografia
<br class="d-none d-xl-block ">?i este descentralizat pentru a controla tranzac?iile ?i preveni dubla cheltuial?, o problem? curent? pentru valutele digitale.</p>
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<div class="row ">
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<h4 class="title animated " >Monedele virtuale sunt folosite <br class="d-none d-xl-block "> pentru a face pl??i electronice de orice valoare.</h4>
<h6 class="pt-4 pb-2 animated " >Pe scurt, moneda electronic? este varianta electronic? a bancnotelor ?i monedelor, care se poate stoca pe un dispozitiv de plat? electronic (e-money).</h6>
<p class="animated " >Deseori se face gre?eala ca moneda virtual? (criptomoneda) s? fie considerat? o moned? electronic?. Conform legii, aceasta nu este o moned? electronic?. Astfel, ?n Romania, art. 4 lit. f din Legea 127/2011 privind activitatea de emitere de moned? electronic?, define?te moneda electronic? ca fiind ?o valoare monetar? stocat? electronic, inclusiv magnetic, reprezentand o crean?? asupra emitentului, emis? la primirea fondurilor ?n scopul efectu?rii de opera?iuni de plat? ?i care este acceptat? de o persoan?, alta decat emitentul de moned? electronic?”.</p>
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</section>
<section id="problem-solution " class="problem-solution section-pro section-padding ">
<div class="container ">
<div class="heading text-center ">
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<h6 class="sub-title ">AVANTAJE</h6>
<h2 class="title ">Avantaje & <strong>Dezavantaje</strong></h2>
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<p class="content-desc animated " >More than $40 million in assets were placed under restraint pending forfeiture, and more than 30
<br class="d-none d-xl-block ">Liberty Reserve exchanger domain names were seized.</p>
</div>
<div class="problems ">
<div class="row ">
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<h4 class="title animated " >Avantaje</h4>
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<ul style="color: #FFF; ">
<li class="animated " >- Este un sistem descentralizat, nu exist? o autoritate central?, cum ar fi o banc? central?</li>
<li class="animated " >- Datele personale despre utilizatori sunt ascunse</li>
<li class="animated " >- Se poate crea o copie de rezerv? criptat? a monedei virtuale</li>
<li class="animated " >- Plata se poate face f?r? ca datele personale s? fie asociate cu tranzac?ia</li>
<li class="animated " >- Utilizatorii au ?n permanen?? controlul tranzac?iilor</li>
<li class="animated " >- Transfer foarte rapid oriunde ?n lume</li>
<li class="animated " >- Nu exist? limit? de sum? pentru transferuri</li>
<li class="animated " >- Comisioane variabile</li>
</ul>
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<div class="col-md-12 col-lg-6 text-center ">
<img src="assets/images-3d-animation/problems-graphic.png " class="problems-img animated " alt="problems-graphic ">
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<div class="solutions mt-5 ">
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<img src="assets/images-3d-animation/solutions-graphic.png " class="solutions-img animated " alt="problems-graphic ">
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<div class="col-md-12 col-lg-6 move-first ">
<div class="heading mb-4 ">
<h4 class="title animated ">Dezavantaje</h4>
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<ul style="color: #FFF; ">
<li class="animated " >- Utilizare redus?</li>
<li class="animated " >- Volatilitatea datorit? faptului c? moneda este ?n cantitate limitat?, iar valoarea ei este dat? de cerere ?i ofert?</li>
<li class="animated " >- Ireversibilitatea tranzac?iilor, anularea fiind imposibil?</li>
<li class="animated " >- Interdic?ia utiliz?rii anumitor criptomonede ?n unele ??ri</li>
<li class="animated " >- Distribu?ia neuniform? a criptomonedei ?ntre primii utilizatori ?i cei actuali</li>
<li class="animated " >- Necesit? un ?nalt nivel de securitate</li>
<li class="animated " >- Nu to?i comercian?ii accept? cripomoneda ca metod? de plat?.</li>
</ul>
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<section id="faq " class="faq section-padding ">
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<h6 class="sub-title ">?ntreb?ri</h6>
<h2 class="title ">?ntreb?ri frecvente</h2>
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<div class="card-header " id="headingOne ">
<h5 class="mb-0 ">
<a class="btn-link " data-toggle="collapse " data-target="#collapseOne " aria-expanded="true " aria-controls="collapseOne ">
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Ce este mineritul ?
</a>
</h5>
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<div class="card-body ">
Criptomoneda poate fi cump?rat?, dar ?i creat?. Procesul de creare a monedei se nume?te ?minerit”. Participan?ii ?n re?ea sunt cunoscu?i sub numele de mineri (englez?: miners). Ace?tia verific?, dateaz? tranzac?iile ?i le partajeaz? ?ntr-o baz? de date public?, numit? blockchain (lan? de blocuri). Exist? noduri specializate care valideaz? tranzac?iile ?i blocurile ?i le conecteaz? ?ntre punctele tranzac?iei.
Opera?iunea de minerit este deosebit de complex? ?i este foarte dificil de realizat pe cont propriu, de un singur utilizator. Astfel, s-au dezvoltat grupuri de mineri, numite mining pools. Un grup de mineri combin? puterea lor de procesare pentru rezolvarea algoritmilor produc?tori de criptomonede.
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<div class="card animated " >
<div class="card-header " id="headingTwo ">
<h5 class="mb-0 ">
<a class="btn-link collapsed " data-toggle="collapse " data-target="#collapseTwo " aria-expanded="false " aria-controls="collapseTwo ">
<span class="icon "></span>
Ce folosim din punct de vedere hardware ?
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<div id="collapseTwo " class="collapse " aria-labelledby="headingTwo " data-parent="#general-accordion ">
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Mineritul de criptomoned? presupune folosirea puterii de calcul a sistemelor PC pentru opera?iunea de mining. Sunt dezvoltate mai multe sisteme dedicate pentru mineritul de criptomonede. Aceste dispozitive se numesc ASIC (Application Specific Integrated Circuit) ?i reprezint? ni?te circuite integrate cu cipuri programate ?n mod permanent ?i cu o aplica?ie integrat? ?n cipurile respective. Dou? companii populare ce ofer? instala?ii de minerit tip ASIC sunt Avalon Asics ?i Butterfly Labs.
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<h5 class="mb-0 ">
<a class="btn-link collapsed " data-toggle="collapse " data-target="#collapseThree " aria-expanded="false " aria-controls="collapseThree ">
<span class="icon "></span>
Ce folosim din punct de vedere software ?
</a>
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<div id="collapseThree " class="collapse " aria-labelledby="headingThree " data-parent="#general-accordion ">
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?n timp ce procesul de minerit ?n sine este f?cut de hardware, este nevoie de software special pentru a conecta minerii la blockchain ?i mining pool. Software-ul poate s? ruleze pe aproape orice sistem de operare, cum ar fi Mac OS X, Windows, Linux. Programul transmite informa?ii ?i rezultate c?tre miner, dar ?i monitorizeaz? statisticile generale cum ar fi temperatura, hashrate-ul, viteza ventilatorului, viteza medie a minerului etc.
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<span class="logo-text ">Lumea Criptomonedelor</span>
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<p class="grey-accent2 ">Criptomoned? sau criptovalut? este un tip de moned? digital?, virtual?, o moned? surogat, nebancar?, folosit? ca mijloc de plat?.</p>
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<h5 class="title " >Leg?turi utile</h5>
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<li class=" " ><a href="bitcoin.html ">Bitcoin</a></li>
<li class=" " ><a href="ethereum.html ">Ethereum</a></li>
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<span class="animated " > Denumirea de criptomoned? indic? faptul c? acest mijloc de plat? utilizeaz? criptografia ?i este descentralizat pentru a controla tranzac?iile ?i preveni dubla cheltuial?, o problem? curent? pentru valutele digitale.</span>
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