Dropdown different size problem

HTML-CSS
#1

Hallo,

https://codepen.io/nkalandadze/pen/GRNOrqY

Dropdown is a different size,

Can you help please ?

thanks <3

#2 
.control{
    display: block;
    width: 100%;
    margin: 0  auto; /* Could this be causing you trouble */
    padding: 10px;
    border-radius: 5px;
#3

Very common problem. Take a look at the box-sizing CSS property and apply it to your inputs.