CSS溢出：自动隐藏工具提示

Question

我有一个工具提示，由于父div上的overflow: auto而被隐藏。

<div id="content">
    <div id="wrapper">
        <div class="item"><span class="tooltip">Tooltip text</span></div>
        <div class="item"><span class="tooltip">Tooltip text</span></div>
        <div class="item"><span class="tooltip">Tooltip text</span></div>
    </div>
</div>

#wrapper {
    width: 400px;
    height: 100px;
    border: 1px solid #ccc;
    border-radius: 10px;
    overflow: auto;
    padding: 10px;
}
.item {
    width: 50px;
    height: 50px;
    border: 1px solid #ccc;
    border-radius: 10px;
    margin-top: 10px;
    position: relative;
}
.item:hover .tooltip {
    visibility: visible;
}
.item .tooltip {
    visibility: hidden;
    background-color: black;
    color: #fff;
    padding: 5px 0;
    border-radius: 6px;
    overflow: auto;
    z-index: 1;
    width: 100px;
    position: absolute;
}

JSfiddle link

Answer 1

将position: absolute;设置为position: fixed;类

中的tooltip