Errors:
Start tag “head” seen but an element of the same type was already open.
An “img” element must have an “alt” attribute, except under certain conditions. For details, consult guidance on providing text alternatives for images.
No space between attributes.
Duplicate ID “small”.
End tag “div” seen, but there were open elements.
Unclosed element “form”.
Stray end tag “form”.
The “width” attribute on the “table” element is obsolete. Use CSS instead.
Attribute “href” not allowed on element “img” at this point.
Bad value “” for attribute “src” on element “img”: Must be non-empty.
Element “i2” not allowed as child of element “button” in this context. (Suppressing further errors from this subtree.)
Stray end tag “div”.
Bad value “” for attribute “id” on element “p”: An ID must not be the empty string.
Quote “'” in attribute name. Probable cause: Matching quote missing somewhere earlier.
Attribute “display:none'” not allowed on element “button” at this point.
Bad value “40%” for attribute “size” on element “input”: Expected a digit but saw “%” instead.
“=” in an unquoted attribute value. Probable causes: Attributes running together or a URL query string in an unquoted attribute value.
Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.
Bad value “260px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.
The “scrolling” attribute on the “iframe” element is obsolete. Use CSS instead.
Text not allowed in element “iframe” in this context.
Bad value “350px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.
Element “purple” not allowed as child of element “li” in this context. (Suppressing further errors from this subtree.)
Element “br” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
The “align” attribute on the “table” element is obsolete. Use CSS instead.
Start tag “form” seen in “table”.
Element “form” not allowed as child of element “table” in this context. (Suppressing further errors from this subtree.)
Duplicate ID “comments”.
The “valign” attribute on the “td” element is obsolete. Use CSS instead.
Attribute “padding-left” not allowed on element “td” at this point.
Bad value “380px” for attribute “width” on element “img”: Expected a digit but saw “p” instead.
Bad value “230px” for attribute “height” on element “img”: Expected a digit but saw “p” instead.
Element “blue” not allowed as child of element “p” in this context. (Suppressing further errors from this subtree.)
Bad value “1” for attribute “border” on element “img”: Only “0” is a permitted zero literal.
Bad value “80%” for attribute “width” on element “img”: Expected a digit but saw “%” instead.
The “align” attribute on the “p” element is obsolete. Use CSS instead.
Bad value “100%” for attribute “width” on element “object”: Expected a digit but saw “%” instead.
Bad value “5%” for attribute “height” on element “object”: Expected a digit but saw “%” instead.
Element “object” is missing one or more of the following attributes: “data”, “type”.
The “classid” attribute on the “object” element is obsolete. Use the “data” and “type” attributes to invoke plugins. To set a parameter with the name “classid”, use the “param” element.
“th” start tag in table body.
The “height” attribute on the “td” element is obsolete. Use CSS instead.
Element “purple” not allowed as child of element “p” in this context. (Suppressing further errors from this subtree.)
Element “blue” not allowed as child of element “li” in this context. (Suppressing further errors from this subtree.)
Element “form” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Element “i” not allowed as child of element “ul” in this context. (Suppressing further errors from this subtree.)
Stray end tag “ul”.
Bad value “index.php?type=Blood clotting§ion=Section1&info=1” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Food groups§ion=Section1&info=2” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Starch in leaf test§ion=Section1&info=4” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Tropism wordsearch§ion=Section1&info=5” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=The Ear§ion=Section1&info=8” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Plant and animal cells§ion=Section2&info=4” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Duplicate ID “home99”.
Bad value “index.php?type=Periodic table§ion=Section1&info=1” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Ionic bonding§ion=Section1&info=2” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Mass number§ion=Section1&info=3” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Atomic structure§ion=Section1&info=4” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=pH scale§ion=Section1&info=5” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Fractional distillation§ion=Section1&info=6” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=States of matter§ion=Section1&info=7” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Exothermic reaction§ion=Section1&info=8” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=The rock cycle§ion=Section2&info=1” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Duplicate ID “homesplit”.
Bad value “index.php?type=Detecting radiation§ion=Section1&info=1” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Electromagnetic induction§ion=Section1&info=3” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Phases of moon§ion=Section1&info=7” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Space quiz§ion=Section1&info=8” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Transfer of heat§ion=Section1&info=9” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Electric bell§ion=Section1&info=10” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Power station§ion=Section2&info=1” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Block quiz§ion=Section2&info=2” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=How science works§ion=Section1&info=1” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Types of variables§ion=Section1&info=5” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Results table§ion=Section1&info=7” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Line graph§ion=Section1&info=9” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Line of best fit§ion=Section1&info=10” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Bar chart§ion=Section2&info=1” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Bad value “index.php?type=Pairs activity§ion=Section2&info=2” for attribute “href” on element “a”: Illegal character in query: space is not allowed.
Warnings:
The “border” attribute is obsolete. Consider specifying “img { border: 0; }” in CSS instead.
The first occurrence of ID “small” was here.
Attribute “display:none'” is not serializable as XML 1.0.
The first occurrence of ID “comments” was here.
A table row was 1 columns wide, which is less than the column count established by the first row (2).
The first occurrence of ID “home99” was here.
The first occurrence of ID “homesplit” was here.
This document appears to be written in English. Consider adding “lang="en"” (or variant) to the “html” start tag.