所以我正在努力让我的页面响应更快,就像我在 Chrome 中想要的那样,但是我尝试用 Firefox 打开它,但它不显示图像。 我尝试将内容属性更改为背景,但这也不起作用。 是什么导致页面内出现这种行为?还有我如何让它适用于 Firefox?
html{
background: #212121;
}
.wrapper {
margin-top: 15%;
display: flex;
justify-content: center; /*center the element*/
flex-wrap: wrap; /*make them above each other when they cannot fit in one row*/
}
.divWrapper {
background-image: url("/images/gear.png");
height: 600px;
width: 250px;
margin: 5%;
}
.headSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/3/35/Head_slot.png/revision/latest?cb=20130227123039");
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 25%;
}
.neckSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/b/b4/Neck_slot.png/revision/latest?cb=20130227122801");
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
}
.arrowSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/6/64/Ammo_slot.png/revision/latest?cb=20130227122436");
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
}
.capeSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/b/ba/Cape_slot.png/revision/latest?cb=20130227182819");
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
}
.chestSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/3/33/Torso_slot.png/revision/latest?cb=20130227120231");
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
}
.swordSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/d/d1/Weapon_slot.png/revision/latest?cb=20130227121007");
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
}
.shieldSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/d/d9/Shield_slot.png/revision/latest?cb=20130227123309");
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
}
.legSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/2/25/Legs_slot.png/revision/latest?cb=20130227123853");
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
}
.feetSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/b/b0/Boots_slot.png/revision/latest?cb=20130227123356");
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
}
.gloveSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/6/69/Gloves_slot.png/revision/latest?cb=20130227123502");
width: 45px;
height: 45px;
}
.ringSlot{
content: url("https://vignette.wikia.nocookie.net/2007scape/images/9/9f/Ring_slot.png/revision/latest?cb=20130227123624");
width: 45px;
height: 45px;
}
.topItems{
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
display: flex;
flex-direction: row;
justify-content: center;
}
.middleItems{
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
display: flex;
flex-direction: row;
justify-content: center;
}
.bottomItems{
width: 45px;
height: 45px;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
display: flex;
flex-direction: row;
justify-content: center;
}
@media only screen and (max-width: 180px){
.topItems{
width: 45px;
height: auto;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
display: flex;
flex-direction: row;
justify-content: center;
flex-wrap: wrap;
}
.middleItems{
width: 45px;
height: auto;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
display: flex;
flex-direction: row;
justify-content: center;
flex-wrap: wrap;
}
.bottomItems{
width: 45px;
height: auto;
margin-left: auto;
margin-right: auto;
margin-top: 2%;
display: flex;
flex-direction: row;
justify-content: center;
flex-wrap: wrap;
}
}
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>Learning</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" media="screen" href="css/style.css" />
</head>
<body>
<div class="wrapper">
<div class="divWrapper">
<a href="#">
<section class="headSlot">
</section>
</a>
<div class="topItems">
<a href="#">
<section class="capeSlot">
</section>
</a>
<a href="#">
<section class="neckSlot">
</section>
</a>
<a href="#">
<section class="arrowSlot">
</section>
</a>
</div>
<div class="middleItems">
<a href="#">
<section class="swordSlot">
</section>
</a>
<a href="#">
<section class="chestSlot">
</section>
</a>
<a href="#">
<section class="shieldSlot">
</section>
</a>
</div>
<a href="#">
<section class="legSlot">
</section>
</a>
<div class="bottomItems">
<a href="#">
<section class="gloveSlot">
</section>
</a>
<a href="#">
<section class="feetSlot">
</section>
</a>
<a href="#">
<section class="ringSlot">
</section>
</a>
</div>
</div>
<div class="divWrapper">
</div>
</div>
<script src="js/main.js"></script>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
</body>
</html>
最佳答案
根据 MDN,content
仅用于伪元素(::before
和 ::after
):
Applies to
::before
and::after
pseudo-elements
编辑:有趣的是,规范的当前工作草案(编辑草案,2018 年 9 月 26 日)说了一些不同的内容:
Applies to: all elements, tree-abiding pseudo-elements, and page margin boxes
第二次编辑:这个功能太新了,甚至caniuse也没有任何东西:
CSS Generated content for pseudo-elements
关于html - content 属性在 Firefox 中不起作用,但在 chrome 中却起作用?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/52727390/