I am using SP2013 & I am trying to create a new edit form using SharePoint designer 2013 in which I have tried to change the width of the textbox in which we enter the data to display such as title , description etc. but I am not able to change the width & height how is it possible ? am I supposed to use CSS ? thanks in advance.

  • 1
    Please describe what you have already tried and how.
    – AmitWiki
    Commented Feb 23, 2016 at 13:30
  • when we try to edit something in default edit form it is in table ; tr & td tags so in td tags there are 3 lines 1.<td width="400px" valign="top" class="ms-formbody"> 2.<SharePoint:FormField 3. <SharePoint:FieldDescription so now when this shows up on site the text box in which we enter is small & I want to increase the length , so I increased the width in 1st line of td which doesn't increase the width of text box. eventually I came to know that sharepoint form field makes the textarea & I am not able to change it's width , how am I suppose to do that ?
    – Dj21
    Commented Feb 24, 2016 at 3:46

1 Answer 1


With CSS, you can achieve this by using below code:

textarea[title="<<Internal Name of the SharePoint Multiline Field>>"] {
    width: 1000px;

With jQuery, it can be easily achieved by below code:

$('textarea[title="<<Internal Name of the SharePoint Multiline Field>>"]').css("width","1000px");

With plain old javascript, one of the ways to achieve it is:

var getElementsByAttribute = function (attr, value) {
  var match = [];
  /* Get the droids we're looking for*/
  var elements = document.getElementsByTagName("*");
  /* Loop through all elements */
  for (var ii = 0, ln = elements.length; ii < ln; ii++) {
    if (elements[ii].hasAttribute(attr)) {
      /* If a value was passed, make sure it matches the element's */
      if (value) {
        if (elements[ii].getAttribute(attr) === value) {
      } else {
        /* Else, simply push it */
  return match;

var MyField = getElementsByAttribute('title','<<Internal Name of Multi-line field>>')[0];
MyField.style.width = '1000px';

You can select any one of the javascript codes above depending upon your use-case and availability of jQuery on list forms, put it in a file and add that file as JSLink to the field you are targeting. That will make SharePoint load and run this script anywhere this field is loaded.

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