CSS2.0-中文手册
span { border-top-width: thin; border-top-style: solid; } span { border-bottom-width: thin; border-bottom-style: solid; } span { border-left-width: thin; border-left-style: solid; } span { border-right-width: thin; border-right-style: solid; }
span { border-top-width: thin; border-top-style: solid; }
span { border-bottom-width: thin; border-bottom-style: solid; }
span { border-left-width: thin; border-left-style: solid; }
span { border-right-width: thin; border-right-style: solid; }