The border property specifies the style, width, and color of an element's border. It is a shorthand property for border-width, border-style, and border-color.
Setting a <h1> element to a solid red border of 5 pixels width.
h1 {
border: 5px solid red;
}
border: border-width border-style border-color;
border-style value is not provided, the default is no border.border-color value is chosen, the border color will match the color of the text.border-width value is not provided, the default is medium.For more information, see https://www.w3schools.com/cssref/pr_border.asp
Found a bug in the documentation? Let us know at documentation@code.org