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[Invalid] Markup Validation of https://upload.wikimedia.org/wikipedia/commons/e/e9/Flag_of_Poland_(normative).svg - W3C Markup Validator

Errors found while checking this document as SVG 1.1!

Result:

2 Errors

Address :

Encoding :

utf-8

Doctype :

SVG 1.1

Root Element:

svg

Root Namespace:

http://www.w3.org/2000/svg

Options

Help on the options is available.

Validation Output: 2 Errors

Line 3 , Column 40 : value of attribute "id" must be a single token
```
…svg width="1280" height="800" id="Flag
 of Poland (normative)" version="1.1" xm…
```
✉

This attribute cannot take a space-separated list of words as a value, but only one word ("token"). This may also be caused by the use of a space for the value of an attribute which does not permit it.
Line 3 , Column 51 : character "(" is not allowed in the value of attribute "id"
```
…1280" height="800" id="Flag of Poland 
(
normative)" version="1.1" xmlns="http:/…
```
✉

It is possible that you violated the naming convention for this attribute. For example, id and name attributes must begin with a letter, not a digit.

Source Listing

Below is the source input I used for this validation:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="1280" height="800" id="Flag of Poland (normative)" version="1.1" xmlns="http://www.w3.org/2000/svg">
<rect width="1280" height="400" fill="#e9e8e7" />
<rect width="1280" height="400" fill="#d4213d" y="400" />
</svg>