When you add textarea input in your html then by default its resize property is enable and its display a resize icon on bottom right side by default See below:
Before adding style :
If you want to remove it then then you have to be add a style on textarea like below :
style="overflow:auto;resize:none;"
After adding style :
Before adding style :
If you want to remove it then then you have to be add a style on textarea like below :
style="overflow:auto;resize:none;"
After adding style :