CSS border-top-style Property
The CSS border-top-style property is used to set the style of an element's top border.
This property is specified as a single keyword chosen from those available for the border-style property. The border-style property is used to set the style for all four sides of an element, but border-top-style sets a style only for the top border.
The default width of the top border is medium. It can be changed by using either the border-top-width or border-width properties.
Not all browsers render the styles in the same way. Chrome renders the dots as rectangular ones, not circular ones.
The specification does not specify the amount of spacing between the dots and the dashes.
The specification does not define how borders of different styles connect in the corners.
| Default Value | none |
| Applies to | All elements. It also applies to::first-letter. |
| Inherited | No |
| Animatable | No |
| Version | CSS1 |
| DOM Syntax | object.style.borderTopStyle = "dashed"; |
Syntax¶
border-top-style: none | hidden | dotted | dashed | solid | double | groove | ridge | inset | outset | initial | inherit;Example of the border-top-style property: ¶
<!DOCTYPE html>
<html>
<head>
<style>
h2,
p {
padding: 15px;
border: solid #666;
}
h2 {
border-top-style: dashed;
}
p {
border-top-style: dotted;
}
</style>
</head>
<body>
<h2>A Heading with dashed border-top-style.</h2>
<p>A paragraph with dotted border-top-style.</p>
</body>
</html>Depending on the value of the border-color, the effects of groove, ridge, inset, and outset values can be changed.
Example of the border-top-style property with all style values:¶
<!DOCTYPE html>
<html>
<head>
<title>Title of the document</title>
<style>
body {
background: #1c87c9;
font-size: 20px;
text-align: center;
}
main div {
display: flex;
align-items: center;
justify-content: center;
color: black;
padding-top: 30px;
padding-bottom: 30px;
width: 200px;
height: 100px;
margin: 15px;
font-weight: bold;
background-color: #c9c5c5;
border: 10px solid;
}
.flex-center {
display: flex;
justify-content: center;
}
/* border-top-style example classes */
.b1 {
border-top-style: hidden;
}
.b2 {
border-top-style: dotted;
}
.b3 {
border-top-style: dashed;
}
.b4 {
border-top-style: solid;
}
.b5 {
border-top-style: double;
}
.b6 {
border-top-style: groove;
}
.b7 {
border-top-style: ridge;
}
.b8 {
border-top-style: inset;
}
.b9 {
border-top-style: outset;
}
</style>
</head>
<body>
<h1>Border-top-style value examples</h1>
<main class="flex-center">
<div class="b1">
hidden
</div>
<div class="b2">
dotted
</div>
<div class="b3">
dashed
</div>
</main>
<main class="flex-center">
<div class="b4">
solid
</div>
<div class="b5">
double
</div>
<div class="b6">
groove
</div>
</main>
<main class="flex-center">
<div class="b7">
ridge
</div>
<div class="b8">
inset
</div>
<div class="b9">
outset
</div>
</main>
</body>
</html>Values¶
| Value | Description | |
|---|---|---|
| none | Defines that there won't be any border. Default value. | |
| hidden | Is the same with "none" except in border conflict resolution for table elements. | |
| dotted | Defines a dotted border. | |
| dashed | Defines a dashed border. | |
| double | Defines a double border. | |
| solid | Defines a solid border. | |
| groove | Defines a 3D grooved border. Its effect can be changed with the value of border-color. | |
| ridge | Defines a 3D ridged border. Its effect can be changed with the value of border-color. | |
| inset | Defines a 3D inset border. Its effect can be changed with the value of border-color. | |
| outset | Defines a 3D outset border. Its effect can be changed with the value of border-color. | |
| initial | Sets the property to its default value. | |
| inherit | Inherits the property from its parent element. |
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