The border-block-start property in CSS is used to define the individual logical block-start border property values in a single place in the style sheet. This property place the border at the top of the defining element.
Syntax:
border-block-start: border-width|border-style|border-color;
Property values:
- border-width: This property value holds the width of the property.
- border-style: This property holds the border style that can be dashed, solid, etc.
- border-color: This property holds the color of the border.
Below examples illustrate the border-block-start property in the CSS:
Example 1:
html
<!DOCTYPE html><html>
<head>
<title>CSS | border-block-start Property</title>
<style>
h1 {
color: green;
}
div {
background-color: yellow;
width: 220px;
height: 40px;
}
.one {
border-block-start: 5px solid yellow;
background-color: purple;
}
</style>
</head>
<body>
<center>
<h1>Geeksforgeeks</h1>
<b>CSS | border-block-start Property</b>
<br><br>
<div class="one">A Computer Science Portal</div>
</center>
</body>
</html>
|
Output:
Example 2:
html
<!DOCTYPE html><html>
<head>
<title>CSS | border-block-start Property</title>
<style>
h1 {
color: green;
}
div {
background-color: yellow;
width: 220px;
height: 40px;
}
.one {
border-block-start: medium dashed yellow;
background-color: purple;
}
</style>
</head>
<body>
<center>
<h1>Geeksforgeeks</h1>
<b>CSS | border-block-start Property</b>
<br><br>
<div class="one">A Computer Science Portal</div>
</center>
</body>
</html>
|
Output:
Supported Browsers: The browsers supported by border-block-start property are listed below:
- Google Chrome 69
- Firefox 41
- Opera 56
- Edge 79
- Safari 12.1