I attempted to center an inline-block vertically in the following manner:
div {
width: 50px;
height: 50px;
background: red;
line-height: 50px;
}
span {
display: inline-block;
width: 20px;
height: 20px;
background: white;
}<div>
<span></span>
</div>However, I noticed that the span is not properly centered vertically. Can anyone explain why this is happening?
When adjusting the line-height, keep in mind that it determines the space between lines of text and also affects the position of the baseline for your text elements, such as span. If your span is 20px tall, you should include half of that value in your line-height:
div {
width: 50px;
height: 50px;
background: red;
line-height: 60px;
}
span {
display: inline-block;
width: 20px;
height: 20px;
background: white;
}<div>
<span></span>
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