html - 内联 block 子自动宽度奇怪的行为

Question

考虑以下标记和 CSS:

.parent {
    position: relative;
    float: right;
    width: 400px;
    height: 35px;
    padding: 0 4px;
    margin: 7px 20px;
    border: 1px solid #aaa;
    border-radius: 5px;
    cursor: text;
    white-space: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
}

.child {
    display: inline-block;
    height: 100%;
    min-width: 1px;
    vertical-align: top;
    background-color: rgba(255, 0, 0, 0.5);
}

.sub-child {
    display: inline-table;
    height: calc(100% - 8px);
    background-color: #ddd;
    line-height: 27px;
    font-size: 0.9em;
    padding: 0 7px;
    margin: 4px 4px 4px 0;
    border-radius: 25px;
}

.sub-child span {
    display: table-cell;
    vertical-align: middle;
}

.sub-child .img {
    width: 20px;
    background-color: blue;
}

.sub-child .name {
    padding: 0 7px;
    max-width: 100px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.sub-child .closebtn {
    position: relative;
    top: -1px;
    color: #525353;
    font-weight: bold;
    font-size: 20px;
    cursor: pointer;
}

.sub-child .closebtn:before {
    content: "\00d7";
}

.sub-child .closebtn:hover {
    color: #000;
}

.other-child {
    display: inline-block;
    height: 100%;
    width: 100px;
    background-color: rgba(0, 0, 0, 0.5);
}

<div class="parent">
    <div class="child">
        <div class="sub-child">
            <span class="img"></span>
            <span class="name">TestClient</span>
            <span class="closebtn"></span>
        </div>
        <div class="sub-child">
            <span class="img"></span>
            <span class="name">Biggle Boo</span>
            <span class="closebtn"></span>
        </div>
        <div class="sub-child">
            <span class="img"></span>
            <span class="name">Ratty Tatty</span>
            <span class="closebtn"></span>
        </div>
        <div class="sub-child">
            <span class="img"></span>
            <span class="name">Shig Wiggle Miggleson</span>
            <span class="closebtn"></span>
        </div>
    </div>
    <div class="other-child"></div>
</div>

我创建了一个 jsfiddle来说明我遇到的问题。 .child 宽度不会自动扩展到其内容的大小，除非删除 .img 跨度。为表格单元格元素指定固定宽度似乎会改变容器的行为。这是错误吗？

Answer 1

好吧，我通过从 .img 表格单元格元素中删除固定宽度并插入一个具有固定宽度的子元素来解决这个问题。但我仍然不确定为什么为表格单元格指定固定宽度会破坏 .child 元素的自动宽度。

.parent {
    position: relative;
    float: right;
    width: 400px;
    height: 35px;
    padding: 0 4px;
    margin: 7px 20px;
    border: 1px solid #aaa;
    border-radius: 5px;
    cursor: text;
    white-space: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
}

.child {
    display: inline-block;
    height: 100%;
    min-width: 1px;
    vertical-align: top;
    background-color: rgba(255, 0, 0, 0.5);
}

.sub-child {
    display: inline-table;
    height: calc(100% - 8px);
    background-color: #ddd;
    line-height: 27px;
    font-size: 0.9em;
    padding: 0 7px;
    margin: 4px 4px 4px 0;
    border-radius: 25px;
}

.sub-child span {
    display: table-cell;
    vertical-align: middle;
}

.sub-child .img:before {
    content: "";
    width: 20px;
    height: 100%;
    background-color: blue;
}

.sub-child .name {
    padding: 0 7px;
    max-width: 100px;
    text-overflow: ellipsis;
    overflow: hidden;
    white-space: nowrap;
}

.sub-child .closebtn {
    position: relative;
    top: -1px;
    color: #525353;
    font-weight: bold;
    font-size: 20px;
    cursor: pointer;
}

.sub-child .closebtn:before {
    content: "\00d7";
}

.sub-child .closebtn:hover {
    color: #000;
}

.other-child {
    display: inline-block;
    height: 100%;
    width: 100px;
    background-color: rgba(0, 0, 0, 0.5);
}

<div class="parent">
    <div class="child">
        <div class="sub-child">
            <span class="img"></span>
            <span class="name">TestClient</span>
            <span class="closebtn"></span>
        </div>
        <div class="sub-child">
            <span class="img"></span>
            <span class="name">Biggle Boo</span>
            <span class="closebtn"></span>
        </div>
        <div class="sub-child">
            <span class="img"></span>
            <span class="name">Ratty Tatty</span>
            <span class="closebtn"></span>
        </div>
        <div class="sub-child">
            <span class="img"></span>
            <span class="name">Shig Wiggle Miggleson</span>
            <span class="closebtn"></span>
        </div>
    </div>
    <div class="other-child"></div>
</div>

fixed fiddle