为什么这些内联块div不适合它们的容器?

时间:2013-09-12 12:17:04

标签: javascript html css dom

fiddle是此question的结果。在其中,我有一个3 div flexbox和一个4 div flexbox。 (此刻,它与Angular无关)

理想情况下,flex divs可以放在容器内,但即使它们总是比它们的容器更窄,它们也不适合(一个div被推出)。更令人困惑的是,它们的数量不同。

当有4个div时,4的宽度之和为814px,而容器的宽度为819px。如果我将最宽div的宽度缩小9个像素,使总宽度为804,它们都按预期方式放入容器内。

#hbox1: width is 819, inner is 819, outer is 821
0 Object {borderWidth: 0, marginWidth: 0, paddingWidth: 0, flex: 1,
1 Object {borderWidth: 2, marginWidth: 0, paddingWidth: 0, flex: 2,
2 Object {borderWidth: 0, marginWidth: 0, paddingWidth: 0, flex: 1,
3 Object {borderWidth: 0, marginWidth: 0, paddingWidth: 0, flex: 1,
#hbox1 finalFlexTotal is 814

当有3个div时,我必须将最宽div的宽度缩小6个像素,以使它们都适合它们的容器。

#hbox2: width is 819, inner is 819, outer is 821
0 Object {borderWidth: 0, marginWidth: 0, paddingWidth: 0, flex: 1,
1 Object {borderWidth: 2, marginWidth: 0, paddingWidth: 0, flex: 2,
2 Object {borderWidth: 0, marginWidth: 0, paddingWidth: 0, flex: 1,
#hbox2 finalFlexTotal is 815 

我已经考虑了borderWidth,marginWidth和paddingWidth都是0.为什么在没有任何随机调整的情况下div不适合他们的容器?

以下是小提琴消失的代码和HTML:

<html>
<body>
<div id="hbox1" style="border: 1px solid red">
    <div flex=1 style="display:inline-block;height:100%">This is the A Box</div>
    <div flex=2 style="border:1px solid black;display:inline-block;height:100%">This is the B Box</div>
    <div flex=1 style="display:inline-block;height:100%">This is the C Box</div>
    <div flex=1 style="display:inline-block;height:100%">This is the D Box</div>
</div>
<div id="hbox2" style="border: 1px solid red;margin-top:40px">
    <div flex=1 style="display:inline-block;height:100%">This is the A Box</div>
    <div flex=2 style="border:1px solid black;display:inline-block;height:100%">This is the B Box</div>
    <div flex=1 style="display:inline-block;height:100%">This is the C Box</div>
</div><script type="text/javascript" src="jquery-1.10.2.js" />
<script type="text/javascript">
function flexBoxIt(selector) {
    var $node,
    index,
    flexValue,
    flexInfo = [],
        totalFlex = 0,
        finalFlexTotal = 0;

    $(selector).children('div').each(function (index) {
        $node = $(this);
        flexValue = $node.attr("flex");
        flexValue = flexValue ? parseInt(flexValue, 10) : 1,
        flexInfo[index] = {
            "borderWidth": parseInt($node.css('borderLeftWidth'), 10) + parseInt($node.css('borderRightWidth'), 10),
            "marginWidth": parseInt($node.css('marginLeft'), 10) + parseInt($node.css('marginRight'), 10),
            "paddingWidth": parseInt($node.css('paddingLeft'), 10) + parseInt($node.css('paddingRight'), 10),
            "flex": flexValue,
            "$jq": $node
        };
        totalFlex += flexValue;
    });
    width = $(selector).width();
    console.log("%s: width is %d, inner is %d, outer is %d", selector, width, $(selector).innerWidth(), $(selector).outerWidth(true));
    for (index in flexInfo) {
        node = flexInfo[index];
        node.width = Math.floor(width * node.flex / totalFlex - node.borderWidth);
        finalFlexTotal += node.width;
        console.log(index, node);
        node.$jq.css("width", node.width + "px");
    }
    console.log("%s finalFlexTotal is %d", selector, finalFlexTotal);
}

flexBoxIt("#hbox1");
flexBoxIt("#hbox2");
</script>
</body>
</html>

2 个答案:

答案 0 :(得分:2)

元素之间的空间会产生额外的宽度。您需要将所有元素放在一行上,如下所示:

<div flex=1 style="...">This is the A Bo</div><div ...>This is the B Box</div>...

答案 1 :(得分:1)

基本上,它是因为你的标记中有空格(新行被视为inline-block元素中的空格)。他们造成了额外的空间。

article有一个格栅{{3}}如何对抗inline-block元素之间的空间,你有很多不同的解决方案。