CSS-border property
Set the border
border there are three values
. 1 border- width // a predetermined width of the frame 2 border- style // predetermined pattern border . 3 border-prescribed border color // Color
If you do not set a value which will not go wrong, such as border: solid # ff0000; also permitted.
border-radius fillet disposed
the RADIUS-border: 10px // Set the four corners
You can also select settings
. 1 border-RADIUS-Top-left: 10px // left corner 2 border-RADIUS-Top-right: 10px // upper right corner . 3 border-bottom-right-RADIUS: 10px // bottom right corner . 4 border-bottom-left-RADIUS : 10px // lower left corner