I've recently come across some outdated CSS code that sets the height to height: 0; in multiple places. I'm curious about what this 0 signifies and what unit it is measured in.
If anyone could provide some insight, I would greatly appreciate it.
I've recently come across some outdated CSS code that sets the height to height: 0; in multiple places. I'm curious about what this 0 signifies and what unit it is measured in.
If anyone could provide some insight, I would greatly appreciate it.
"0" does not require a unit because height:0; has the same effect as height: 0px; or height: 0%;
height:0;
The outcome varies based on the targeted element: For example:
#parentdiv{height:0;}
This only sets the height of the parent div to 0px, but it does not necessarily mean that the child div will be hidden unless overflow:hidden; is also applied. Therefore, the result depends on the element it is added to.
When it comes to css, the concept of height refers to the physical measurement of an element.
Essentially, setting a value of height:0px or height:0% will result in the same outcome.
To demonstrate this, let's compare two HTML elements: one with height:0; and the other with height:100px.
#box1 {
height: 0;
background-color: #333;
}
#box2 {
height: 100px;
background-color: #333;
color: white;
}<div id="box1" style="">this is an element</div>
<br/>
<div id="box2" style="">this is an element</div>When dealing with image height
Setting 0% equals 100% :-D
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