width
th - This attribute is used to define a recommended cell width. Additional space can be added with the <a href="/en-US/docs/Web/API/HTMLTableElement/cellSpacing">cellspacing</a> and <a href="/en-US/docs/Web/API/HTMLTableElement/cellPadding">cellpadding</a> properties and the width of the <a title="The HTML <col> element defines a column within a table and is used for defining common semantics on all common cells. It is generally found within a <colgroup> element." href="/en-US/docs/Web/HTML/Element/col"><code><col></code></a> element can also create extra width. But, if a column's width is too narrow to show a particular cell properly, it will be widened when displayed.
<strong>Usage Note: </strong>Do not use this attribute in the latest standard: use the CSS <a title="The width property specifies the width of an element. By default, the property defines the width of the content area. If box-sizing is set to border-box, it instead determines the width of the border area." href="/en-US/docs/Web/CSS/width"><code>width</code></a> property instead. object - The width of the display resource, in <a class="external" href="https://drafts.csswg.org/css-values/#px">CSS pixels</a>. -- (Absolute values only. <a class="external" href="https://html.spec.whatwg.org/multipage/embedded-content.html#dimension-attributes">NO percentages</a>) col, colgroup - This attribute specifies a default width for each column in the current column group. In addition to the standard pixel and percentage values, this attribute might take the special form <code>0/</code>, which means that the width of each column in the group should be the minimum width necessary to hold the column's contents. Relative widths such as <code>0.5/</code> also can be used. video - The width of the video's display area, in <a class="external" href="https://drafts.csswg.org/css-values/#px">CSS pixels</a>. -- (Absolute values only. <a class="external" href="https://html.spec.whatwg.org/multipage/embedded-content.html#dimension-attributes">NO percentages</a>) td - This attribute is used to define a recommended cell width. Properties <a href="/en-US/docs/Web/API/HTMLTableElement/cellSpacing">cellspacing</a> and <a href="/en-US/docs/Web/API/HTMLTableElement/cellPadding">cellpadding</a> may add additional space, and element <a title="The HTML <col> element defines a column within a table and is used for defining common semantics on all common cells. It is generally found within a <colgroup> element." href="/en-US/docs/Web/HTML/Element/col"><code><col></code></a> width may also have some effect. In general, if a column's width is too narrow to show a particular cell properly, it, and thus the cells in it, may be widened when displayed.
<strong>Note: </strong>Do not use this attribute in the latest standard: instead set the CSS <a title="The width property specifies the width of an element. By default, the property defines the width of the content area. If box-sizing is set to border-box, it instead determines the width of the border area." href="/en-US/docs/Web/CSS/width"><code>width</code></a> property. iframe - Indicates the width of the frame <span class="inlineIndicator htmlVer htmlVerInline"><a href="/en-US/docs/HTML/HTML5">HTML5</a></span> in CSS pixels, or <span class="inlineIndicator htmlVer htmlVerInline">HTML 4.01</span> in pixels or as a percentage. canvas - The width of the coordinate space in CSS pixels. Defaults to 300. pre - Contains the <em>preferred</em> count of characters that a line should have. Though technically still implemented, this attribute has no visual effect; to achieve such an effect, use CSS <a title="The width property specifies the width of an element. By default, the property defines the width of the content area. If box-sizing is set to border-box, it instead determines the width of the border area." href="/en-US/docs/Web/CSS/width"><code>width</code></a> instead. hr - Sets the length of the rule on the page through a pixel or percentage value. img - The intrinsic width of the image in pixels. In <span class="inlineIndicator htmlVer htmlVerInline"><a href="/en-US/docs/HTML">HTML 4</a></span>, either a percentage or pixels were acceptable values. In <span class="inlineIndicator htmlVer htmlVerInline"><a href="/en-US/docs/HTML/HTML5">HTML5</a></span>, however, only pixels are acceptable. table - This attribute defines the width of the table. The width may be defined by pixels or a percentage value. A percentage value will be defined by the width of the container in which the table is placed.
<strong>Usage Note: </strong>Do not use this attribute, as it has been deprecated. The rules should be defined and styled using <a href="/en-US/docs/CSS">CSS</a>. Use the <a title="The width property specifies the width of an element. By default, the property defines the width of the content area. If box-sizing is set to border-box, it instead determines the width of the border area." href="/en-US/docs/Web/CSS/width"><code>width</code></a> property instead. embed - The displayed width of the resource, in <a class="external" href="https://drafts.csswg.org/css-values/#px">CSS pixels</a>. -- (Absolute values only. <a class="external" href="https://html.spec.whatwg.org/multipage/embedded-content.html#dimension-attributes">NO percentages</a>) input - If the value of the <strong>type</strong> attribute is <code>image</code>, this attribute defines the width of the image displayed for the button.