A summary of the introduction of background images and borders in CSS

1. In CSS, the url(); method should be used to introduce the background image. The relative path or absolute path of the image is in the parentheses.

                                 

 

2. When using the border property, you can't just set the width of the border, but set it together with the style. There are three values ​​for the border property: width, style, and color. If the width is only set, the border is invisible. E.g:

                   

 And if you add a style, you can see the border, for example:

                          

PS: If the color is set, the border will be displayed in the corresponding color, if no color is set, it will display black by default.

2015-12-29 21:32:19