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border-radiusAug 03, 2023 pm 01:39 PM
border-radius

border-radius is a CSS property used to create a rounded effect for the border of HTML elements. By setting the border-radius property of an element, you can adjust the corners of the element to make it appear circular or elliptical. or other custom shaped borders.

border-radius

border-radius is a CSS property used to create a rounded effect for the borders of HTML elements. By setting the element's border-radius property, you can adjust the corners of an element to give it a circular, elliptical, or other custom-shaped border.

The border-radius attribute can be used on any HTML element, including divs, buttons, images, etc. When using border-radius, you can control the rounded corners of the border by setting one or more values. These values ​​can be pixels (px), percentages (%), or divisors (used for calculations relative to the element size).

The syntax of the border-radius attribute is as follows:

border-radius: value1 value2 value3 value4;

Among them, value1, value2, value3 and value4 represent the upper left corner and upper right corner respectively. Corner radius for the corner, lower right corner, and lower left corner. If you set less than four values, the values ​​will be reused in sequence to set the remaining corners.

If only one value is set, the fillet radii of the four corners will be equal. For example:

border-radius: 10px; // The corner radius of all corners is 10px

If two values ​​are set, then the first value will be applied to the upper left corner and the lower right corner, The second value will be applied to the upper right and lower left corners. For example:

border-radius: 10px 20px; // The corner radius of the upper left corner and lower right corner is 10px, and the corner radius of the upper right corner and lower left corner is 20px

If you set three values, then the first value will be applied to the upper left corner, the second value will be applied to the upper right and lower left corners, and the third value will be applied to the lower right corner. For example:

border-radius: 10px 20px 30px; // The radius of the upper left corner is 10px, the radius of the upper right and lower left corners is 20px, and the radius of the lower right corner is 30px

The border-radius attribute also supports specifying percentages and divisors as values. These values ​​will calculate the corner radius proportionally relative to the size of the element. For example:

border-radius: 50% 25% 75% 10%; // The fillet radius in the upper left corner is 50% of the element width, the fillet radius in the upper right corner is 25% of the element height, and the fillet radius in the lower right corner is 50% of the element width. The corner radius is 75% of the element width, and the lower left corner radius is 10% of the element height

In addition to specifying precise values, the border-radius property can also use special values ​​to create circles or ellipses. frame. For example:

border-radius: 50%; // Create a circular border with a radius of 50% of the width of the element

In summary, border-radius is a method used to Set the CSS properties of the border rounded effect of HTML elements. It can control the fillet radius of corners by setting one or more values, and also supports relative calculations using percentages or divisors. Using border-radius can make your web design more beautiful and increase the visual appeal of elements.

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