我正在尝试为可能具有可变偏移量的按钮提供工具提示。我以为自己找到了一个好的解决方案,但是在其他浏览器中进行测试时会发生一些奇怪的事情。下面的代码(and in this fiddle)在Chromium 72.0.3626.81和Firefox 66.0b3(均在Arch Linux上)之间呈现不同。在Chromium上,它按预期显示,但是在Firefox上,工具提示未正确偏移。在Firefox上,实际工具提示的边距应为应有的一半。
为什么会发生这种情况,如何使浏览器之间的预期行为保持一致?
:root {
font-size: 62.5%;
font-family: 'sans-serif';
--tooltip-offset: 50px;
}
.container {
position: relative;
display: flex;
justify-content: center;
align-items: center;
}
.link {
border-radius: 4px;
height: 4rem;
font-size: 1.6rem;
border: 1px solid hsl(215, 36%, 78%);
padding: 0 1.5rem;
justify-content: center;
align-items: center;
display: inline-flex;
}
.tooltip {
font-size: 1.4rem;
z-index: 2;
width: 225px;
position: absolute;
text-align: center;
padding: 0.7rem 3rem;
border-radius: 4px;
pointer-events: none;
top: 100%;
margin-top: 12px;
border: 1px solid black;
margin-left: calc(0px - var(--tooltip-offset));
}
.tooltip:before {
z-index: 1;
content: ' ';
position: absolute;
bottom: 100%;
border-color: transparent transparent black transparent;
margin-left: var(--tooltip-offset);
left: calc(50% - 12px);
border-width: 12px;
border-style: solid;
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.1/normalize.min.css" rel="stylesheet"/>
<div class="container">
<a class="link" href="example.com">
Go to example.com
</a>
<span class="tooltip">
Click here to go to example.com
</span>
</div>
答案 0 :(得分:1)
我不确定Firefox和Chrome处理负边距是否有所不同,因此更可靠的方法可能是使用transform:
:root {
font-size: 62.5%;
font-family: 'sans-serif';
--tooltip-offset: 50px;
}
.container {
position: relative;
display: flex;
justify-content: center;
align-items: center;
}
.link {
border-radius: 4px;
height: 4rem;
font-size: 1.6rem;
border: 1px solid hsl(215, 36%, 78%);
padding: 0 1.5rem;
justify-content: center;
align-items: center;
display: inline-flex;
}
.tooltip {
font-size: 1.4rem;
z-index: 2;
width: 225px;
position: absolute;
text-align: center;
padding: 0.7rem 3rem;
border-radius: 4px;
pointer-events: none;
top: 100%;
margin-top: 12px;
border: 1px solid black;
transform: translateX(calc(0px - var(--tooltip-offset)));
}
.tooltip:before {
z-index: 1;
content: ' ';
position: absolute;
bottom: 100%;
border-color: transparent transparent black transparent;
margin-left: var(--tooltip-offset);
left: calc(50% - 12px);
border-width: 12px;
border-style: solid;
}
<link href="https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.1/normalize.min.css" rel="stylesheet"/>
<div class="container">
<a class="link" href="example.com">
Go to example.com
</a>
<span class="tooltip">
Click here to go to example.com
</span>
</div>
在我这两个浏览器上都可以正常工作!