css - 如果容器内部有 ul，如何使容器成为父容器的 100%

Question

我有标记:

http://jsfiddle.net/ZVXFD/85/

我需要制作 100% 父容器的 .step，如何实现。HTML:

 <div class="steps-container">
        <div class="group">
            <div class="step">
                <ul class="sortable">
                    <li class="item">Item</li>
                    <li class="item">Item</li>
                    <li class="item">Item</li>
                    <li class="item">Item</li>
                    <li class="item">Item</li>
                </ul>
            </div>
            <div class="step">
                <ul class="sortable">
                    <li class="item">Item</li>
                    <li class="item">Item</li>
                    <li class="item">Item</li>
                    <li class="item">Item</li>
                    <li class="item">Item</li>
                    <li class="item">Item</li>

                </ul>
            </div>
            <div class="step">
                <ul class="sortable">
                    <li class="item">Item</li>
                    <li class="item">Item</li>
                </ul>
            </div>
        </div>

    </div>

CSS:

* {
    margin: 0px;
    padding: 0px;
}

ul {
    list-style-type: none;
    margin: 0px;
    padding: 0px;
    display: inline-block;
}

.sortable li {
    margin: 0px;
    padding: 0px;
    width: 100px;
    height: 100px;
    border: 1px solid black;
    background-color: lightgrey;
}


.group {
    display:inline-block;
    border: 1px solid red;
}

.step {
    border: 1px solid green;
    display:inline-block;
    background-color: yellow;
}

.item {
    background-color: lightgray;
}

Answer 1

你可以设置 position: relative; 为 .group

和

position: absolute;
top: 0;
left: 0;
right: 0;
bottom: 0;

到.step

我假设你当时只显示一个 .step 元素，我错了吗？