<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> doctype设置错误!html 2(数字2代表版本号): <!doctype html public "-/ietf/dtd html 2.0/en">html 3.2: <!doctype html public "-/w3c/dtd html 3.2 final/en"> —————————————————————————————— html 4.01 strict: <!doctype html public "-/w3c/dtd html 4.01/en" "http://www.w3.org/tr/html4/strict.dtd">html 4.01 transitional: <!doctype html public "-/w3c/dtd html 4.01 transitional/en" "http://www.w3.org/tr/html4/loose.dtd">html 4.01 frameset: <!doctype html public "-/w3c/dtd html 4.01 frameset/en" "http://www.w3.org/tr/html4/frameset.dtd"> —————————————————————————————— xhtml 1.0 strict: <!doctype html public "-/w3c/dtd xhtml 1.0 strict/en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-strict.dtd">xhtml 1.0 transitional: <!doctype html public "-/w3c/dtd xhtml 1.0 transitional/en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">xhtml 1.0 frameset: <!doctype html public "-/w3c/dtd xhtml 1.0 frameset/en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-frameset.dtd"> —————————————————————————————— xhtml 1.1: <!doctype html public "-/w3c/dtd xhtml 1.1/en" "http://www.w3.org/tr/xhtml11/dtd/xhtml11.dtd">xhtml 1.1 plus mathml plus svg: <!doctype html public "-/w3c/dtd xhtml 1.1 plus mathml 2.0 plus svg 1.1/en" "http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">
doctype设置错误!html 2(数字2代表版本号):
<!doctype html public "-/ietf/dtd html 2.0/en">html 3.2:
<!doctype html public "-/w3c/dtd html 3.2 final/en">
——————————————————————————————
html 4.01 strict:
<!doctype html public "-/w3c/dtd html 4.01/en"
"http://www.w3.org/tr/html4/strict.dtd">html 4.01 transitional:
<!doctype html public "-/w3c/dtd html 4.01 transitional/en"
"http://www.w3.org/tr/html4/loose.dtd">html 4.01 frameset:
<!doctype html public "-/w3c/dtd html 4.01 frameset/en"
"http://www.w3.org/tr/html4/frameset.dtd">
——————————————————————————————
xhtml 1.0 strict:
<!doctype html public "-/w3c/dtd xhtml 1.0 strict/en"
"http://www.w3.org/tr/xhtml1/dtd/xhtml1-strict.dtd">xhtml 1.0 transitional:
<!doctype html public "-/w3c/dtd xhtml 1.0 transitional/en"
"http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">xhtml 1.0 frameset:
<!doctype html public "-/w3c/dtd xhtml 1.0 frameset/en"
"http://www.w3.org/tr/xhtml1/dtd/xhtml1-frameset.dtd">
——————————————————————————————
xhtml 1.1:
<!doctype html public "-/w3c/dtd xhtml 1.1/en"
"http://www.w3.org/tr/xhtml11/dtd/xhtml11.dtd">xhtml 1.1 plus mathml plus svg:
<!doctype html public
"-/w3c/dtd xhtml 1.1 plus mathml 2.0 plus svg 1.1/en"
"http://www.w3.org/2002/04/xhtml-math-svg/xhtml-math-svg.dtd">