Fontawasome垂直图标对齐

Question

Why vertical-align: middle; does not align icons to middle of a header?

  .custom { color: white; vertical-align: middle; } .header { width: 100%; height: 40px; background: rgb(40,40,40); } 

 <link href="http://netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet"/> <div class="header"> <i class="fa fa-facebook custom" aria-hidden="true"></i> <i class="fa fa-twitter custom" aria-hidden="true"></i> <i class="fa fa-instagram custom" aria-hidden="true"></i> <i class="fa fa-google-plus custom" aria-hidden="true"></i> </div> 

Answer 1

these days, the best way to align to center vertically is to use flexbox. See also:

https://css-tricks.com/snippets/css/a-guide-to-flexbox/

https://philipwalton.github.io/solved-by-flexbox/demos/vertical-centering/

 .custom { color: white; vertical-align: middle; } .header { display:flex; align-items: center; width: 100%; height: 40px; background: rgb(40,40,40); } 

 <link href="http://netdna.bootstrapcdn.com/font-awesome/4.0.3/css/font-awesome.css" rel="stylesheet"/> <div class="header"> <i class="fa fa-facebook custom" aria-hidden="true"></i> <i class="fa fa-twitter custom" aria-hidden="true"></i> <i class="fa fa-instagram custom" aria-hidden="true"></i> <i class="fa fa-google-plus custom" aria-hidden="true"></i> </div> 

Answer 2

.custom {
    color: white;
    vertical-align: middle;
    **line-height: 40px;**
}

Answer 3

Give some margin to .custom margin-top=2.5% or margin=2.5% and it'll work.

On the other hand, vertical-align would also work if you had something like this;

<a class="header">
    <i class="fa fa-facebook custom" aria-hidden="true"></i>
</a>

Answer 4

The reason why its not working is because you have mentioned height remove height and it will be aligned to middle, instead of height use padding for the parent class , for you its header .

.custom {
    color: white;
    vertical-align: middle;
}
.header {
    width: 100%;
    padding:20px;
    background: rgb(40,40,40);
}