Border Radius Generator

Border-radius can turn the four corners of a block into arcs. The border-radius property is a composite property that can specify up to four border -*- radius properties. The order of the four values for each radius is: upper left corner, Upper right corner, lower right corner, lower left corner. If the lower left corner is omitted, the upper right corner is the same. If the lower right corner is omitted, the upper left corner is the same. If the upper right corner is omitted, the upper left corner is the same.

With this knowledge, it's very convenient to use this border-radius generator. All the property values of border-radius can be modified by the generator at the top of the page, and you can see the effect and get the code right away.