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The space around padding and margin is called a border. Border style property can take one to four values depending on the requirement. If a client wants all sides same border style, it can be done by one value with border-style property. If the client wants a different border design at the top and bottom, left and right has the same border style, 3 values can do it with border-style property. If the client wants to have the same border style on the top and bottom sides, and the left and right sides have the same border type, 2 border-style values can be used. If a client wants all four sides of different borders, it can be done by 4 values with border-style property. We can also apply only one border style at a time using border-left, border-right, border-top and border-bottom properties.

The difference between the padding, margin, and border.

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As we know common styles in all the pages, we always preferred CSS over HTML.

How does Border Style work in HTML?

Get border around the content or image used border-style property.
You can use referrer below syntaxes for demonstration.

Syntax 1:

div
{
border-style: value1, value2, value3, value4; //border style values
}

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Syntax 1 Explanation:

If we apply border-style with 4 values, then the first value is for the top, second value is for the right, the third value is for bottom, and fourth value is for the left applied, respectively.

Syntax 2:

div
{
border-style: value1, value2, value3; //border style values
}

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Syntax Explanation:

If we apply border-style with 3 values, then the first value is for the top, second value is for left and right, the third value is for the bottom applied, respectively.

Syntax 3:

div
{
border-style: value1, value2; //border style values
}

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Syntax Explanation:

If we apply border-style with 2 values, then the first value is for top and bottom, and second value is for left and right applied, respectively.

Syntax 4:

div
{
border-style: value//border style value
}

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Syntax Explanation:

If we apply border-style with only a single value, then apply it for all four sides equally.

If we want to add border-style only to one side as we mentioned in the introduction, like top or right or bottom or left. You can use syntaxes underneath.

Syntax 1:

div
{
border-top-style: value//border top side value
}

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Syntax 2:

div
{
border-right-style: value//border right side value
}

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Syntax 3:

div
{
border-bottom-style: value//border bottom side value
}

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Syntax 4:

div
{
border-left-style: value//border left side value
}

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Examples of HTML Border Style

Given below are the examples of HTML Border Style:

Example #1

Border style property with 4 values and border-top style property.

Code:

<!DOCTYPE html>
<html>
<head>
<title>border style</title>
</head>
<style>
.style1
{
border-style:solid dotted dashed double;
border-color:brown;
border-width:10px;
font-size: 20px;
}
.style2
{
border-top-style:solid;
border-color:blue;
border-width:10px;
font-size:20px;
}
</style>
<body>
<font color="green"><h2>Border style property with 4 values and border
top style property</h2></font>
<p class="style1">Hi, I am designed with border style property by 4
values (top, right, bottom and left respectively).</p>
<p class="style2">Hi, I am designed with border top style property.</p>
</body>
</html>

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Output:

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Explanation:

As you can see in the above CSS code style1 class is for the border-style property, it is applied to all 4 border styles to the border like a top as a solid line, right as a dotted line, bottom as a dashed line and left as double line respectively.
In style2 class is for border-top style property, it is applied to top border-style value to solid.

Example #2

Border style property with 3 values and border-right style property.

Code:

<!DOCTYPE html>
<html>
<head>
<style>
.style1
{
border-style:solid double dashed;
border-color:aqua;
border-width:10px;
font-size: 20px;
width: 800px;
}
.style2
{
border-right-style:solid;
border-color:brown;
font-size: 20px;
border-width:10px;
width: 800px;
}
</style>
<meta charset="ISO-8859-1">
<link rel="stylesheet" href="BorderStyle3ValuesAndRight.css">
<title>border style</title>
</head>
<body>
<font color="green"><h2>Border style property with 3 values and border
right style property</h2></font>
<p class="style1">Hi, I am designed with border style property by 3
values (top, right, bottom and left respectively).</p>
<p class="style2">Hi, I am designed with border right style property.</p>
</body>
</html>

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Output:

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Explanation:

As you can see in the above CSS code style1 class is for the border-style property, it is applied to all 3 border styles to the border like a top as a solid line, right and left as a double line, bottom as a dashed line, respectively.
In style2 class is for border-right style property, it is applied right border-style value to solid.

Example #3

Border style property with 2 values and border-bottom style property.

Code:

<!DOCTYPE html>
<html>
<head>
<title>border style</title>
</head>
<style>
.style1
{
border-style:groove ridge;
border-color:teal;
border-width:10px;
font-size: 20px;
width: 800px;
}
.style2
{
border-bottom-style:double;
border-color:red;
font-size: 20px;
border-width:10px;
width: 800px;
}
</style>
<body>
<font color="green"><h2>Border style property with 2
values and border bottom style property</h2></font>
<p class="style1">Hi, I am designed with border style property by 2
values (top, right, bottom and left respectively).</p>
<p class="style2">Hi, I am designed with border bottom style
property.</p>
</body>
</html>

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Output:

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Explanation:

As you can see in the above CSS code style1 class is for the border-style property, it is applied to all 2 border styles to the border, like top and bottom as groove line, right and left as ridgeline respectively.
In style2 class is for border-bottom style property, it is applied to bottom border style value to double.

Example #4

Border style property with a single value and border-left style property.

Code:

<!DOCTYPE html>
<html>
<head>
<title>border style</title>
</head>
<style>
.style1
{
border-style:double;
border-color:maroon;
border-width:10px;
font-size: 20px;
width: 800px;
}
.style2
{
border-left-style:double;
border-color:purple;
font-size: 20px;
border-width:10px;
width: 800px;
}
</style>
<body>
<font color="green"><h2>Border style property with Single
value and border left style property</h2></font>
<p class="style1">Hi, I am designed with border style property by single
value (top, right, bottom and left respectively).</p>
<p class="style2">Hi, I am designed with border left style
property.</p>
</body>
</html>

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Output:

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Explanation:

如你在上面的 CSS 程式碼中看到的，style1 類別用於 border-style 屬性，它對邊框應用了單一邊框樣式，如上、右、下、左分別為雙線，右。
在 style2 類別中，用於 border-left 樣式屬性，它將左邊框樣式值套用到 double。

結論

Border-style 屬性可以應用一個、兩個、三個和四個值，並且border-top-style、border-right-style、border-bottom-style 和border-left-style 一次應用單一邊框.

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