transition-property

* {
 margin: 0;
 padding: 0;
}

.main {
 height: 600px;
 width: 900px;
 position: absolute;
 top: 50%;
 left: 50%;
 margin-top: -300px;
 margin-left: -450px;
}

.wrapper {
 width: 33.3%;
 height: 100%;
 float: left;
}

#div1, #div2, #div3 {
 height: 200px;
 width: 200px;
 float: left;
 position: relative;
 top: 50%;
 left: 50%;
 margin-top: -100px;
 margin-left: -100px;
 background-color: #3BA9DE;
 transition-duration: 1s;
 -moz-transition-duration: 1s;
 -o-transition-duration: 1s;
 -webkit-transition-duration: 1s;
 -ms-transition-duration: 1s;
} 

#div1 {
 transition-property: all;
 -moz-transition-property: all;
 -o-transition-property: all;
 -webkit-transition-property: all;
 -ms-transition-property: all;
}

#div2 {
 -moz-transition-property: height;
 -o-transition-property: height;
 -webkit-transition-property: height;
}

#div1:hover {
 width: 250px;
 height: 250px;
 background-color: #A3E61D;
}


#div2:hover {
 height: 250px;
 background-color: #7092BE;
}

#div3:hover {
 width: 250px;
 background-color: #852E76;
}