2013-05-15 24 views

回答

0

你可以使用CSS 3D轉換

input { 
    width: 280px; 
    -webkit-transition: width 1s ease; 
    -moz-transition: width 1s ease; 
    -o-transition: width 1s ease; 
    -ms-transition: width 1s ease; 
    transition: width 1s ease; 
} 

input:focus { 
    width: 340px; 
}