How do you calculate border-radius?

Horizontal radius is calculated as a percentage of the border box’s width. Vertical radius is calculated as a percentage of the border box’s height. First value is top-left and bottom-right corners. Second value is top-right and bottom-left corners.

Can border-radius accept any length value?

Every radius can be a or value. Percentages for the horizontal radius refer to the width of the border box, whereas percentages for the vertical radius refer to the height of the border box. Negative values are not allowed.

Why border-radius is not working?

Your problem is unrelated to how you have set border-radius . Fire up Chrome and hit Ctrl+Shift+j and inspect the element. Uncheck width and the border will have curved corners. Try add !

Does Border-radius work on all browsers?

Definition and syntax for border-radius The border-radius property will accept up to two values in WebKit browsers and up to eight now in Firefox 3.5. Prior to IE9 these CSS3 properties do not work in Internet Explorer.

How do you add a border radius to a table?

1. Set a border-right and border-bottom for your table cells ( td and th )
2. Give the cells in the first row a border-top.
3. Give the cells in the first column a border-left.
4. Using the first-child and last-child selectors, round the appropriate corners for the table cells in the four corners.

What does border radius do?

The border-radius CSS property rounds the corners of an element’s outer border edge. You can set a single radius to make circular corners, or two radii to make elliptical corners.

How do four values work on border radius?

Note: The four values for each radius are given in the order top-left, top-right, bottom-right, bottom-left. If bottom-left is omitted it is the same as top-right. If bottom-right is omitted it is the same as top-left. If top-right is omitted it is the same as top-left.

Can I use border top right radius?

The border-top-right-radius property is used to round the top right corner of an element. Percentages for the horizontal radius refer to the width of the border box, whereas percentages for the vertical radius refer to the height of the border box. Negative values are not allowed.

Why is border radius not working in IE?

Just generally IE sucks. So IE (up to 9) doesn’t support rounded corners by default. You should either use images / resort to some 3rd party stuff. border-radius will work in IE9, only not in versions below that (IE8, IE7.) you can use the below meta tag to activate some CSS properties in IE. i use this tag and have no such problems.

What do you do with border radius in CSS?

border-radius The border-radius CSS property rounds the corners of an element’s outer border edge. You can set a single radius to make circular corners, or two radii to make elliptical corners.

Can you set border radius to 2 in Firefox?

The border-radius property will accept up to two values in WebKit browsers and up to eight now in Firefox 3.5. Here are the CSS and browser-specific attributes in question: Prior to IE9 these CSS3 properties do not work in Internet Explorer.

When does border radius apply to the background?

The radius applies to the whole background, even if the element has no border; the exact position of the clipping is defined by the background-clip property. The border-radius property does not apply to table elements when border-collapse is collapse.