AdminLte/build/scss/plugins/_jqvmap.scss

/*
 * Plugins: JQVMap
 * ---------------
 */

// Zoom Button size fixes
.jqvmap-zoomin,
.jqvmap-zoomout {
    background-color: $button-default-background-color;
    color: $button-default-color;
    border: 1px solid $button-default-border-color;
    border-radius: $btn-border-radius;

    width: 15px;
    height: 15px;

  &:hover,
  &:active,
  &.hover {
    color: darken($button-default-color, 10%);
    background-color: darken($button-default-background-color, 5%);
  }
}