<head>
<meta charset="UTF-8">
<title>Document</title>
<style>
#Tri{
width:0px;
height:0px;
border-top: 50px solid yellow;
border-right:50px solid red;
border-bottom:50px solid green;
border-left:50px solid blue;
}
</style>
</head>
<body>
<div id="Tri"></div>
</body>This code demonstrates creating four triangles, with the interesting detail that despite setting the width of the div to 0px, the border is still visible with a size of 50px. This may seem counterintuitive at first glance.
Great inquiry! Check out this visual representation of the CSS box model:
https://i.sstatic.net/qwR89.gif
(image source: w3schools.com)
Even if you set your content's height and width to 0, the border can still be visible. For more information on the CSS box model, visit W3Schools.com.
When utilizing the width and height styles, keep in mind that they only affect the inner dimensions of the HTML element. On the other hand, the border weight dictates the appearance of the outer part of the element.
In one scenario, it seems like there is no room for the content to fit properly.
#Tri{
width:0px;
height:0px;
border-top: 50px solid yellow;
border-right:50px solid red;
border-bottom:50px solid green;
border-left:50px solid blue;
}
Meanwhile, in another case, it appears that there is ample space for the content to expand since the div element adjusts itself based on the available width.
#Tri{
border-top: 50px solid yellow;
border-right:50px solid red;
border-bottom:50px solid green;
border-left:50px solid blue;
}
Consulting the principles of the css box model, margin is initially added to create distance between elements on the webpage. Subsequently, borders are applied, showcasing this with the four colored triangles representing the borders. Padding then comes into play, creating space between the content and the border. Lastly, defining the style with width:0px and height:0px specifies that these measurements apply strictly within the bounds of the border.
The concept of the "box model" in CSS can be summarized as follows:
width + padding + border = total width of the box
height + padding + border = total height of the box
If you want to adjust the box-model, you can do so by defining the box-sizing property.
box-sizing: border-box;
This should give you the desired outcome. This method is also similar to how Internet Explorer (maybe still does?) handles the box-model.
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