Answers for "how to not resize textarea in html"

textarea resize off

<textarea class="myTextArea"></textarea>
<style>
  .myTextArea {
    resize: none;
  }
</style>

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; }