What is the use of the border-top-color attribute in css
This article will explain in detail what is the use of the border-top-color attribute in css. The editor thinks it is very practical, so I share it for you as a reference. I hope you can get something after reading this article.
Definition and usage of cssborder-top-color attribute
In css, the border-top-color attribute is used to set the color of the top border of the element, which can be used when we need to set the color of the top border separately; if we want to set the width, style, and color of the top border at the same time, we can use the border-top attribute to define these attributes in a declaration, which has the advantage of writing fewer lines of code and making it more readable.
Note: to set the border color, you must set the border style, because the element default border style is transparent, the transparent border color setting will not have a display effect, so to use the border-top-color property to set the top border color, you must ensure that the top border style property (border-top-style) is defined before, otherwise the set top border color will not see the effect.
Cssborder-top-color attribute syntax format
Css syntax format: border-top-color:color_name/hex_number/rgb_number/transparent/inherit; (example: border-top-color:red;)
JavaScript syntax: object.style.borderTopColor= "blue"
Cssborder-top-color attribute value description
Color_name: the color represented by the color name (e.g. red)
Hex_number: the color represented by the hexadecimal value (e.g. # ff0000)
The color represented by the rgb_numberrgb code (e. G. rgb (255j0pc0))
Transparen: border color is transparent (default)
Inherit: inherits border colors from parent elements
Case study
Cssborder-top-color property sets the top border color note
Body {background:#ddd;font-size:20px;}
# a,#b,#c {margin-top:10px;width:300px;border-top-style:solid;}
# a {border-top-color:blue;}
# b {border-top-color:#FFF000;}
# c {border-top-color:rgb (255J 0pm 0);}
Use the color name to define the border color demonstration
Demonstration of using hexadecimal values to define border color
Use rgb code to define border color demonstration
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