transition css

div {
  transition: all 0.5s ease;
  background: red;
  padding: 10px;
}
div:hover {
  background: green;
  padding: 20px;
}

#content #nav a:hover {
    color: black;
    background-color: #AD310B;
    /* Firefox */
    -moz-transition: all 1s ease-in;
    /* WebKit */
    -webkit-transition: all 1s ease-in;
    /* Opera */
    -o-transition: all 1s ease-in;
    /* Standard */
    transition: all 1s ease-in;
}

.box {
    border-style: solid;
    border-width: 1px;
    display: block;
    width: 100px;
    height: 100px;
    background-color: #0000FF;
    transition: width 2s, height 2s, background-color 2s, transform 2s;
}

.box:hover {
    background-color: #FFCCCC;
    width: 200px;
    height: 200px;
    transform: rotate(180deg);
}