gitlab-org--gitlab-foss/app/assets/stylesheets/generic/selects.scss

/** Select2 selectbox style override **/

.select2-container {
  .select2-choice {
    background: #FFF;
    border-color: #BBB;

    .select2-arrow {
      background: #FFF;
    }
  }
}

.select2-drop-active {
  border: 1px solid #BBB;
  margin-top: 4px;
}

select {
  &.select2 {
    width: 100px;
  }

  &.select2-sm {
    width: 100px;
  }
}

@media (min-width: $screen-sm-min) {
  select {
    &.select2 {
      width: 150px;
    }
    &.select2-sm {
      width: 120px;
    }
  }
}

/* Medium devices (desktops, 992px and up) */
@media (min-width: $screen-md-min) {
  select {
    &.select2 {
      width: 170px;
    }
    &.select2-sm {
      width: 140px;
    }
  }
}

/* Large devices (large desktops, 1200px and up) */
@media (min-width: $screen-lg-min) {
  select {
    &.select2 {
      width: 200px;
    }
    &.select2-sm {
      width: 150px;
    }
  }
}


/** Branch/tag selector **/
.project-refs-form .select2-container {
  margin-right: 10px;
}