如何根据背景图像大小自动调整div的大小？

我需要的是简单的：我有一个图像具有1920x1080px，我把这个图像作为背景图像在我的div。

我的代码：

HTML：

<!DOCTYPE html> 
<html> 
<meta charset="UTF-8"/> 
<link rel="stylesheet" href="_css/Estilo.css"/> 
<head> 
    <title>ooOOOoos</title> 
</head> 
<body> 
    <div id=imgHeader> 
    <p>Hey!!</p> 
</div> 
</body> 
</html>

CSS：

@charset "UTF-8"; 

*{ 
    margin: 0; 
    padding: 0; 
} 

body{ 
    background-color: #ffffff; 
} 

#imgHeader{ 
    background: url(../_img/img1.jpg) no-repeat center center fixed; 
    background-size: cover; 
    -webkit-background-size: cover; 
    -moz-background-size: cover; 
    -ms-background-size: cover; 
    -o-background-size: cover; 
}

我需要的是这样的： enter image description here 但是...我得到这个：任何想法关于如何帮助我？

来源

2015-07-11 Matheus Cirillo

你最好的选择是绝对定位与背景图像的股利。然后，您可以将其设置为拉伸整个宽度和高度。

#imgHeader{ 
    position: absolute; 
    top: 0; 
    right: 0; 
    bottom: 0; 
    left: 0; 

    background: url(../_img/img1.jpg) no-repeat center center fixed; 
    background-size: cover; 
    -webkit-background-size: cover; 
    -moz-background-size: cover; 
    -ms-background-size: cover; 
    -o-background-size: cover; 
}

Demo

编辑基于评论从OP

如果固定高度头是你正在寻找实现，那么你可以设置它min-height什么：

#imgHeader{ 
     min-height: 80rem; 

     background: url(../_img/img1.jpg) no-repeat center center fixed; 
     background-size: cover; 
     -webkit-background-size: cover; 
     -moz-background-size: cover; 
     -ms-background-size: cover; 
     -o-background-size: cover; 
    }

Demo

来源

2015-07-11 22:42:25 Guy

作品，但与此代码，页面滚动不apear，我需要 –

所以，你希望你的页面滚动滚动在它的顶部？ – Guy

是的，当我滚动时，我的页面应该变成灰色，这个div应该消失。示例：[here]（http://mobile.thescore.com/about-us/） –

您只需要为div定义高度。我会建议使用100％，像这样：

* { 
 
    margin: 0; 
 
    padding: 0; 
 
} 
 
html, body { 
 
    background-color: #ffffff; 
 
    height: 100%; /*see change here*/ 
 
} 
 
#cabecalho { 
 
    height: 100%; /*see change here*/ 
 
    background: transparent url("http://i.stack.imgur.com/vNQ2g.png") no-repeat fixed center center/contain; /*contain will ensure that the entire image is in view*/ 
 
}

<div id="cabecalho"> 
 
    <p>Hey!! Zombie ipsum reversus ab viral inferno, nam rick grimes malum cerebro. De carne lumbering animata corpora quaeritis. Summus brains sit, morbo vel maleficia? De apocalypsi gorger omero undead survivor dictum mauris. Hi mindless mortuis soulless creaturas, imo evil stalking monstra adventus resi dentevil vultus comedat cerebella viventium. Qui animated corpse, cricket bat max brucks terribilem incessu zomby. The voodoo sacerdos flesh eater, suscitat mortuos comedere carnem virus. Zonbi tattered for solum oculi eorum defunctis go lum cerebro. Nescio brains an Undead zombies. Sicut malus putrid voodoo horror. Nigh tofth eliv ingdead. 
 

 
Cum horribilem walking dead resurgere de crazed sepulcris creaturis, zombie sicut de grave feeding iride et serpens. Pestilentia, shaun ofthe dead scythe animated corpses ipsa screams. Pestilentia est plague haec decaying ambulabat mortuos. Sicut zeder apathetic malus voodoo. Aenean a dolor plan et terror soulless vulnerum contagium accedunt, mortui iam vivam unlife. Qui tardius moveri, brid eof reanimator sed in magna copia sint terribiles undeath legionis. Alii missing oculis aliorum sicut serpere crabs nostram. Putridi braindead odores kill and infect, aere implent left four dead. 
 

 
Lucio fulci tremor est dark vivos magna. Expansis creepy arm yof darkness ulnis witchcraft missing carnem armis Kirkman Moore and Adlard caeruleum in locis. Romero morbo Congress amarus in auras. Nihil horum sagittis tincidunt, zombie slack-jawed gelida survival portenta. The unleashed virus est, et iam zombie mortui ambulabunt super terram. Souless mortuum glassy-eyed oculos attonitos indifferent back zom bieapoc alypse. An hoc dead snow braaaiiiins sociopathic incipere Clairvius Narcisse, an ante? Is bello mundi z?</p> 
 
</div>

来源

2015-07-11 22:54:04 apaul

如何根据背景图像大小自动调整div的大小？

回答

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