Just add the following lines of code to your CSS and this should fix your problem:
input[type=text], /*transition delay*/
textarea {
-webkit-transition: all 0.35s ease-in-out;
-moz-transition: all 0.35s ease-in-out;
-ms-transition: all 0.35s ease-in-out;
-o-transition: all 0.35s ease-in-out;
outline: none;
padding: 3px 0px 3px 3px;
margin: 5px 1px 3px 0px;
border: 2px solid #f1f1f1;
}
input[type=text]:focus, /*creates highlight effect*/
textarea:focus {
box-shadow: 0 0 3px rgba(81, 203, 238, 1);
padding: 3px 0px 3px 3px;
margin: 5px 1px 3px 0px;
border: 1px solid rgba(81, 203, 238, 1);
}
input[type=password], textarea{ /*prevents showing outline border when clicked*/
outline: 0;
}