header, footer, div, h1, h2, h3, h4, h5, h6, p, span, a, b, strong, em, ul, ol, li { border: solid 1px; }

header, footer { border-color: gray; }

div { border-color: gray; border-style: dashed; }

h1, h2, h3, h4, h5, h6 { border-color: aqua; }

p { border-color: lime; }

span, a, b, strong, em { border-color: red; }
a { border-style: dashed; }

ul, ol { border-color: blue; }

li { border-color: blue; border-style: dashed; }