Answers for "css increase size of div"

css size

#myID {
  height: 100px; /* Sets the height */
  width: 200px; /* Sets the width */
}
/* or... */
.myClass {
  height: 220px; /* Sets the height */
  width: 40px; /* Sets the width */
}
/* They both work! */

decrease div size

.shrink{
-webkit-transform:scale(0.5);
-moz-transform:scale(0.5);
-ms-transform:scale(0.5);
transform:scale(0.5);
}