CSS transition Özelliği
input[type=text] {
width: 100px;
transition: width .35s ease-in-out;
}
input[type=text]:focus {
width: 250px;
}
input[type=text] {
width: 100px;
transition: width .35s ease-in-out;
}
input[type=text]:focus {
width: 250px;
}