调整SVG大小以适应容器大小

Question

你有一个包含各种内容（高度不确定）的div容器（具有固定的宽度和高度）。 此内容的一部分可以是SVG图/图形，其具有已定义的viewBox并且包含在标记内。

我正在寻找一种解决方案，它将使SVG比例保持其纵横比，以使其在div容器中100％可见。

首选纯CSS解决方案（div容器已经是一个弹性框容器）但javascript也可以是一个选项

<div class="slide"> 
<h1 id="preferredpizzas">Preferred pizzas</h1>

<h2 id="donutchart">Donut chart</h2>
<object class="c3">
<svg viewBox="0 0 800 600">...</svg></object> 
<p>this text should be visible as well</p>
</div>

小提琴：https://jsfiddle.net/rzu23r4g/

Answer 1

你的小提琴标记无效（对象标签是多余的，你有未封闭的标签）

一旦我解决了这个问题，我将div更改为一个弹性框并垂直定向，并且所有内容都显示在框中。

.slide{
    display: flex;
    flex-flow: column;
    width: 500px;
    height : 370px;
    border: 1px solid #000;
    overflow: hidden;
}

<div class="slide">
<h1 id="preferredpizzas">Preferred pizzas</h1>

<h2 id="donutchart">Donut chart</h2>
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pointer-events: none;"><g class=" c3-shapes c3-shapes-un c3-bars c3-bars-un" style="cursor: pointer;"></g></g><g class="c3-chart-bar c3-target c3-target-deux" style="opacity: 1; pointer-events: none;"><g class=" c3-shapes c3-shapes-deux c3-bars c3-bars-deux" style="cursor: pointer;"></g></g><g class="c3-chart-bar c3-target c3-target-quatre" style="opacity: 1; pointer-events: none;"><g class=" c3-shapes c3-shapes-quatre c3-bars c3-bars-quatre" style="cursor: pointer;"></g></g></g><g class="c3-chart-lines"><g class="c3-chart-line c3-target c3-target-un" style="opacity: 1; pointer-events: none;"><g class=" c3-shapes c3-shapes-un c3-lines c3-lines-un"></g><g class=" c3-shapes c3-shapes-un c3-areas c3-areas-un"></g><g class=" c3-selected-circles c3-selected-circles-un"></g><g class=" c3-shapes c3-shapes-un c3-circles c3-circles-un" style="cursor: pointer;"></g></g><g class="c3-chart-line c3-target c3-target-deux" style="opacity: 1; pointer-events: none;"><g class=" c3-shapes c3-shapes-deux c3-lines c3-lines-deux"></g><g class=" c3-shapes c3-shapes-deux c3-areas c3-areas-deux"></g><g class=" c3-selected-circles c3-selected-circles-deux"></g><g class=" c3-shapes c3-shapes-deux c3-circles c3-circles-deux" style="cursor: pointer;"></g></g><g class="c3-chart-line c3-target c3-target-quatre" style="opacity: 1; pointer-events: none;"><g class=" c3-shapes c3-shapes-quatre c3-lines c3-lines-quatre"></g><g class=" c3-shapes c3-shapes-quatre c3-areas c3-areas-quatre"></g><g class=" c3-selected-circles c3-selected-circles-quatre"></g><g class=" c3-shapes c3-shapes-quatre c3-circles c3-circles-quatre" style="cursor: pointer;"></g></g></g><g class="c3-chart-arcs" transform="translate(400,282)"><text class="c3-chart-arcs-title" style="text-anchor: middle; opacity: 1;"></text><g class="c3-chart-arc c3-target c3-target-un"><g class=" c3-shapes c3-shapes-un c3-arcs c3-arcs-un"><path class=" c3-shape c3-shape c3-arc c3-arc-un" transform="" d="M-49.22649582305915,263.33849340531725A267.9,267.9 0 0,1 -73.31431504031106,-257.6730898059982L-43.98858902418663,-154.6038538835989A160.73999999999998,160.73999999999998 0 0,0 -29.535897493835492,158.00309604319037Z" style="fill: rgb(31, 119, 180); opacity: 1;"></path></g><text dy=".35em" class="" transform="translate(-214.0913151596445,9.898038856955004)" style="opacity: 1; 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pointer-events: none; display: none;"></div>
<p>this text should be visible as well</p>
</div>