如何控制div儿童的垂直间距？

Question

任务:

保留拇指指甲的垂直列表.拇指指甲必须按窗口尺寸缩放.拇指指甲包含在div中,其尺寸使用vw,vh给出.在每次调整大小时,Javascript函数会重新计算所有拇指指甲的宽度和高度,以便在div的可见区域中出现固定数量的指甲,并尽可能大.为了保持拇指指甲的垂直间距不变,可见拇指指甲的高度相加,增加一个因子并分配到div的高度.

问题:

当使窗户非常狭窄时,拇指指甲之间的垂直空间越来越大.为hFit和hTotal计算的值(请参阅下面的Javascript代码)似乎不正确,导致不需要的叠加或拇指指甲的垂直间距过大.

细节:

整个布局如下:

最外面的div(.content-area)控制整个控件的垂直对齐(居中)..content-area(.content-control)的子节点控制实际列表(.content-data)的布局以及将出现在该列表左侧的关闭按钮(.close-btn-area).

代码:

CSS:

.content-area
{
    position: absolute;
    left: 2vw;
    top: 5vh;
    width: 30vw;
    height: 90vh;
    display: flex;
    flex-direction: column;
    align-items: start;
    justify-content: center;
    list-style: none;
    opacity: 0.0;
}

.content-control
{
    position: relative;
    margin: 0 0 0 0;
    display: flex;
    flex-direction: row;
    align-items: start;
    justify-content: flex-start;
    overflow: hidden;
}

.content-data
{
    position: relative;
    margin: 0 0 0 0;
    padding: 0 0 0 0;
    width: auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

#thumbs-content
{
    margin: 1vmin 1vmin 1vmin 1vmin;
    height: 78vh;
    font-family: 'Alegreya Sans SC', Verdana, sans-serif;
    font-variant: small-caps;
    overflow: hidden;
    color:#404040;
}

.thumb-size
{
    margin: 1vmin 0;
    width: 16vw;
    height: 12vh;
    display: flex;
    justify-content: center;
    align-items: center;        
}

.close-btn-area
{
    margin: 1vmin 1vmin 1vmin 1vmin;
    width: 4vh;
    height: 4vh;
    display: flex;
    align-items: start;
    justify-content: flex-start;
    cursor: pointer;
    -webkit-user-select: none;
    -khtml-user-select: none;
    -moz-user-select: none;
    -o-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.close-btn
{
    width:    4vh;
    height: 4vh;
    border: 0;
}

HTML:

<div class="content-area" id="thumbs-area">
    <div class="content-control" id="thumbs-control">
         <div class="close-btn-area" id="close-thumbs">
             <a><img class="close-btn" id="close-btn-thumbs" src="close-btn-inverted-128x128.png">
         </div>
         <div class="content-data" id="thumbs-data">
            <article id="thumbs-content">
                <div class="thumb-size"><img class="thumb" id="thumb1" src="img1.jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb2" src="img2.jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb3" src="img3.jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb4" src="img4.jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb5" src="img5.jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb6" src="img6.jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb7" src="img7.jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb8" src="im8.jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb9" src="im9.jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb10" src="img10jpg"></div>
                <div class="thumb-size"><img class="thumb" id="thumb11" src="img11.jpg"></div>
            </article>
        </div>
    </div>
</div>

JavaScript的:

const nVisibleThumbs = 6;
var nTopThumb = 0;
var nThumbCount = 11; // simplified; will be computed in the actual code
var nThumbScale = 0.9;

function RecalcThumbsLayout () 
{
    var elem = $('#thumbs-content');
    var w = elem.width ();
    var h = Math.round (elem.height () * nThumbScale);
    var hFit = 0;
    var wFit = 0;
    var hTotal = 0;

    for (i = 1; i <= nThumbCount; i = i + 1) 
    {
        var idStr = "#thumb" + i;
        var ar = Math.min (1.5, $(idStr).prop ('naturalWidth') / $(idStr).prop ('naturalHeight'));
        var ph = Math.round (h / nVisibleThumbs * 0.9);
        var pw = Math.round (Math.min (ph * ar, w * 0.9));
        ph = Math.floor (pw / ar); // considers portrait format images
        $(idStr).css ("width", pw);
        $(idStr).css ("height", ph);
        hTotal += ph;
        if ((i > nTopThumb) && (i <= nTopThumb + nVisibleThumbs))
            hFit += ph;
        if (wFit < pw)
            wFit = pw;
    }
    wFit *= 1.25; // compensate for scaling above
    hFit *= 1.25; // compensate for scaling above
    $('#thumbs-data').css ('width', wFit + 'px'); 
    $('#thumbs-data').css ('height', hFit + 'px'); 
    elem.css ('height', hTotal + 'px');
}

示范:

要查看不需要的效果,您可以访问:http://www.brockart.de/S,单击"Schmuck",然后水平调整浏览器窗口的大小.

问题:

1. 我需要在Javascript中进行哪些更改才能使其正常工作？
2. 是否有一种更优雅的方式只使用css/html执行此操作？

Answer 1

更换你的.thumb-size

  .thumb-size
   {
      margin: 1vmin 0;
     width: 16vw;
    height: 12vh;
    display: flex;
     justify-content: center;
     align-items: center;        
    }

到

   .thumb-size
   {
      margin: 1vmin 0;
     width: 16vw;
    height: auto;
    display: flex;
     justify-content: center;
     align-items: center;
    }

它将按预期工作