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I am trying to set the width of a text input field as a percentage of total page width, as follows: 

<input type="text" id="url" NAME="otherSite" size="70%" value=""/>

This doesn't seem to work. It seems I can specify the width of an input field only in absolute terms.

Short of going to javascript, is there any simple way? I am trying to have it look good both on desktop and mobile, where the windows are likely to be of very different size.

I am trying to set the width of a text input field as a percentage of total page width, as follows: 

<input type="text" id="url" NAME="otherSite" size="70%" value=""/>

This doesn't seem to work. It seems I can specify the width of an input field only in absolute terms.

Short of going to javascript, is there any simple way? I am trying to have it look good both on desktop and mobile, where the windows are likely to be of very different size.

  • javascript
  • html
  • forms
  • mobile
Share Improve this question asked Jul 20, 2011 at 2:20 LucaLuca 1,0681 gold badge11 silver badges17 bronze badges 1
  • Possible duplicate of Can the size of input fields be set to percent values? – Vadzim Commented May 28, 2017 at 18:37
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1 Answer 1

Reset to default 6

Use the style attribute:

<input type="text" id="url" NAME="otherSite" style="width:70%" value=""/>

You also might want to read up on CSS (Cascading Style Sheets).

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