css glow on hover

1div {
2    width: 150px;
3    height: 150px;
4    background-color: #fff;
5
6    box-shadow: 120px 80px 40px 20px #0ff;
7    /* in order: x offset, y offset, blur size, spread size, color */
8    /* blur size and spread size are optional (they default to 0) */
9}

1element {
2  box-shadow:none;
3}
4element:hover, element:active {
5  box-shadow: inset 0 0 10px #(color of the glow you want);
6}