textarea unresizable code example

Example 1: prevent textarea resize css

textarea {
  resize: none;
}

Example 2: disable textarea resize

textarea {   /* for all text* area elements */
  resize: none;
}

#foo {                  /* for particular id */
  resize: none;
}

Example 3: make textarea not resizable

You can either apply this as an inline style property like so: 
<textarea style="resize: none;"></textarea>
or in between 
<style>...</style> element tags like so: 
textarea { resize: none; }