我试图水平中心一个<div>块元素在页面上,并将其设置为最小宽度。最简单的方法是什么?我想要<div>元素内联与我的页面的其余部分。我来举个例子:

page text page text page text page text
page text page text page text page text
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               | div |
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page text page text page text page text
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当前回答

如果旧浏览器不是问题,可以使用HTML5 / CSS3。如果他们是,应用腻子,仍然使用HTML5 / CSS3。我假设您的div在这里没有边距或填充,但它们相对容易解释。下面是代码。

.centered {
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}

它的作用是:

定位div相对于它的容器; 将div的左边界水平放置在其容器宽度的50%; 水平向后平移div自身宽度的50%。

很容易想象这个确认div最终将水平居中的过程。作为奖励,你可以垂直居中,没有额外的成本:

.centered-vertically {
    position: relative;
    top: 50%;
    transform: translateY(-50%);
}

这种方法的优点是您不必做任何违反直觉的事情,例如将div视为某种文本,将其包装在一个(通常在语义上无用)额外的容器中,或者赋予它一个固定的宽度,这并不总是可能的。

如果需要,不要忘记转换的供应商前缀。

其他回答

这里我添加了正确的答案

您可以使用此片段代码并进行自定义。这里我使用2个子块。这应该显示页面的中心。 您可以使用一个或多个块。

<html>
<head>
<style>
#parent {
    width: 100%;
    border: solid 1px #aaa;
    text-align: center;
    font-size: 20px;
    letter-spacing: 35px;
    white-space: nowrap;
    line-height: 12px;
    overflow: hidden;
}

.child {
    width: 100px;
    height: 100px;
    border: solid 1px #ccc;
    display: inline-block;
    vertical-align: middle;
}
</style>
</head>

<body>

<div class="mydiv" id="parent">


<div class="child">
Block 1
</div>
<div class="child">
Block 2
</div>

</div>
</body>
</html>

你可以使用位置:相对;然后设置左边和上面的值:

.cenverDiv{
    position:relative;
    left:30%;
    top:0px;
}

在大多数浏览器,这将工作:

div.centre { 宽度:200 px; 显示:块; background - color: # eee; margin-left:汽车; margin-right:汽车; } <div class=" center ">一些文本</div>

在IE6中,你需要添加另一个外部div:

div.layout { text-align:中心; } div.centre { text-align:左; 宽度:200 px; background - color: # eee; 显示:块; margin-left:汽车; margin-right:汽车; } < div class = "布局”> <div class=" center ">一些文本</div> < / div >

问题的标题和内容实际上是不同的,所以我将发布两个解决方案,使用Flexbox。

我猜在IE8和IE9完全被摧毁之前,Flexbox将取代/添加到当前的标准解决方案中;)

检查当前flexbox的浏览器兼容性表

单一的元素

.container { 显示:flex; justify-content:中心; } < div class = "容器" > < img src = " http://placehold.it/100x100 " > < / div >

多个元素,但只以一个为中心

默认行为是flex-direction: row,将所有子项对齐在一行中。将其设置为flex-direction: column将有助于堆叠的行。

.container { display: flex; flex-direction: column; } .centered { align-self: center; } <div class="container"> <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. </p> <div class="centered"><img src="http://placehold.it/100x100"></div> <p>Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged. </p> </div>

使用jQuery:

$(document).ready(function() {
    $(".myElement").wrap( '<span class="myElement_container_new"></span>' ); // for IE6
    $(".myElement_container_new").css({// for IE6
        "display" : "block",
        "position" : "relative",
        "margin" : "0",
        "padding" : "0",
        "border" : "none",
        "background-color" : "transparent",
        "clear" : "both",
        "text-align" : "center"
    });
    $(".myElement").css({
        "display" : "block",
        "position" : "relative",
        "max-width" : "75%", // for example
        "margin-left" : "auto",
        "margin-right" : "auto",
        "clear" : "both",
        "text-align" : "left"
    });
});

或者,如果你想用".myElement"类居中每个元素:

$(document).ready(function() {
    $(".myElement").each(function() {
        $(this).wrap( '<span class="myElement_container_new"></span>' ); // for IE6
        $(".myElement_container_new").css({// for IE6
            "display" : "block",
            "position" : "relative",
            "margin" : "0",
            "padding" : "0",
            "border" : "none",
            "background-color" : "transparent",
            "clear" : "both",
            "text-align" : "center"
        });
        $(this).css({
            "display" : "block",
            "position" : "relative",
            "max-width" : "75%",
            "margin-left" : "auto",
            "margin-right" : "auto",
            "clear" : "both",
            "text-align" : "left"
        });
    });
});