header wrapper re

This question already has an answer here:

How do I vertically center text with CSS? 34 answers

---

You could simply add text-align: center to the parent element. The img will respect this because it is inline by default.

Updated Example

header {
    background-image: url("http://lorempixel.com/400/200");
    background-size: 100% 100%;
    height: 100px;
    text-align: center;
}

See this answer for alternative approaches.

---

这应该做到这一点，如果你所需要的只是保持图标居中，那么你并不需要绝对定位它。

header {
    background-image: url("http://lorempixel.com/400/200");
    background-size: 100% 100%;
    height: 100px;
    text-align: center;
}

#home {
   margin-top: 10px;
}

---

尝试这个，

#home {
position:absolute;
top:10px;
left:48%;
}

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