How to control the CSS transition?

1

I am creating a search bar that accepts search terms from user.I have inserted a CSS transition (it’s width increases on click).The problem I am facing is that when i click the submit button the width of the search bar decreases.I don’t want that to happen and the search bar should retain its changed width.
Here is the HTML:

submit

Here is the CSS:

input[type=text] {
width: 130px;
box-sizing: border-box;
border: 2px solid black;
border-radius: 4px;
font-size: 16px;
background-color: white;
background-image: url(“http://icons.iconarchive.com/icons/ampeross/qetto-2/256/search-icon.png”);
background-size:40px;
/background-position: 10px 10px;/
background-repeat: no-repeat;
padding: 12px 20px 12px 40px;
-webkit-transition: width 0.4s ease-in-out;
transition: width 0.4s ease-in-out;
margin-left:7%;
}

input[type=text]:focus {
width: 75%;
}
here is the link to my pen:

2

When your input field loses focus, the css width gets removed.

You can try putting this behavior in your JS, something like this.

  $('#search').focus(function(){
    $('#search').css('width','75%');
  });

But if your mouse leaves the input field, it stays at 75% width.