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Width Attribute

Table width defined by styling or by width attribute, which is not deprecated but users are encouraged to use width property. Browser support of width styling property is now good in standards mode

width
Defines the overall width of the table as a percentage or in pixels. If not provided, the contents decides the size. Similar to images
<table width="80%">
My First Table
First Heading Second Heading
First Row One Second Row One
First Row Two Second Row Two

<table width="600">
My First Table
First Heading Second Heading
First Row One Second Row One
First Row Two Second Row Two