CSS3 过渡

div
{
    transition: width 2s;
    -webkit-transition: width 2s; /* Safari */
}

div:hover
{
    width:300px;
}

div
{
    transition: width 2s, height 2s, transform 2s;
    -webkit-transition: width 2s, height 2s, -webkit-transform 2s;
}

div
{
    transition-property: width;
    transition-duration: 1s;
    transition-timing-function: linear;
    transition-delay: 2s;
    /* Safari */
    -webkit-transition-property:width;
    -webkit-transition-duration:1s;
    -webkit-transition-timing-function:linear;
    -webkit-transition-delay:2s;
} 

div
{
    transition: width 1s linear 2s;
    /* Safari */
    -webkit-transition:width 1s linear 2s;
}