width and height in HTML and CSS

<table width="200">
Test1
<table style="width: 200px;">
Test2
<td width="200">
Test3
<td style="width: 200px;">
Test4
<td width="200" style="padding: 0 20px;">
Test5
<td style="width: 200px; padding: 0 20px;">
Test6
<td height="200">
Test7
<td style="height: 200px;">
Test8
<td height="200" style="padding: 20px 0;">
Test9
<td style="height: 200px; padding: 20px 0;">
Test10
<img style="width:100%"> Test11
<img width="100%"> Test11

This is a note on how the test should be read and interpreted.

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