discourse/app/assets/stylesheets/application/modal.css.scss

// base styles for every modal popup used in Discourse

@import "foundation/variables";
@import "foundation/mixins";

.modal-open {
  .dropdown-menu {
     z-index: 2050;
  }
  .dropdown.open {
    *z-index: 2050;
  }
  .popover {
    z-index: 2060;
  }
  .tooltip {
    z-index: 2070;
  }

}

.modal-backdrop {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 1040;
  background-color: #000000;
  &.fade {
    opacity: 0;
  }
}

.modal-backdrop,
.modal-backdrop.fade.in {
  opacity: 0.8;
  filter: alpha(opacity=80);
}

.modal-outer-container {
  display:table;
  width:100%;
  height:100%;
}
.modal-middle-container {
  display:table-cell;
  vertical-align: middle;
}
.modal-inner-container {
  max-width: 610px;
  margin: 0 auto;
  background-color: #ffffff;
  border: 1px solid #999;
  border: 1px solid rgba(0, 0, 0, 0.3);
  *border: 1px solid #999;
  /* IE6-7 */

  @include border-radius-all (6px);
  box-shadow: 0 3px 7px rgba(0, 0, 0, 0.3);
  background-clip: padding-box;
}
.modal {
  position: fixed;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 1050;
  overflow: auto;
}

// Hardcode to be the same as before for now. I would recommend not using bootbox, or finding a way so the html structure can be the same
.bootbox.modal {
  position: fixed;
  top: 50%;
  left: 50%;
  z-index: 1050;
  overflow: auto;
  width: 610px;
  height: auto;
  margin: -250px 0 0 -305px;
  background-color: #ffffff;
  border: 1px solid #999;
  border: 1px solid rgba(0, 0, 0, 0.3);
  *border: 1px solid #999;
  /* IE6-7 */

  @include border-radius-all (6px);
  box-shadow: 0 3px 7px rgba(0, 0, 0, 0.3);
  background-clip: padding-box;
}

.modal.fade {
  -webkit-transition: opacity .3s linear, top .3s ease-out;
  transition: opacity .3s linear, top .3s ease-out;
  top: -25%;
}
.modal.fade.in {
  top: 50%;
}
.modal-body {
  overflow-y: auto;
  max-height: 400px;
  padding: 15px;
}
.modal-form {
  margin-bottom: 0;
}
.modal-footer {
  margin: 0 15px;
  padding: 14px 0 15px;
  border-top: 1px solid #ddd;
  @include border-radius-all(0 0 6px 6px);
  @include box-shadow (inset 0 1px 0 #ffffff);
  *zoom: 1;
}
.modal-footer:before,
.modal-footer:after {
  display: table;
  content: "";
}
.modal-footer:after {
  clear: both;
}
.modal-footer .btn + .btn {
  margin-left: 5px;
  margin-bottom: 0;
}
.modal-footer .btn-group .btn + .btn {
  margin-left: -1px;
}
.modal-header {
  border-bottom: 1px solid #9baab2;
  @include box-shadow((0 1px 3px rgba($black, 0.12), inset 0 -4px 4px -4px rgba($black, 0.3)));
  h3 {
    color: $nav-pills-background-color-active;
    font-size: 20px;
    padding: 10px 15px 7px;
  }
  .close {
    float: right;
    font-size: 20px;
    margin: 10px 10px 0px;
    text-decoration: none;
    color: $modal-close-button-color;
    cursor: pointer;
    &:hover {
      color: darken($modal-close-button-color,20);
    }
  }
}

.modal {
  .nav {
    padding: 10px 30px;
    background-color: #e6e6e6;
    li > a {
      font-size: 14px;
    }
    border-bottom: 1px solid #bbb;

  }
  &.hidden {
    display: none;
  }
  .modal-body {
    textarea {
      width: 99%;
      height: 80px;
    }
    label {
      color: $darkish_gray;
    }
    p {
      color: $black;
      font-size: 13px;
    }
    .archetype-option {
      margin-bottom: 20px;
    }


  }
  .password-confirmation {
    display: none;
  }

  section.field {
    margin-bottom: 20px;
  }
}

#move-selected {
  p {
    margin-top: 0;
  }

  input[type=radio] {
    margin-right: 10px;
  }

  button {
    margin-top: 10px;
    display: block;
    width: 300px;
  }

  form {
    margin-top: 20px;
    input[type=text] {
      width: 500px;
    }
  }
}

.flag-modal {
  max-height: 450px;
}

.custom-message-length {
  margin-bottom: 10px;
  margin-left: 20px;
}

.flag-message {
  margin-left: 20px;
  width: 95% !important;
}

.edit-category-modal {
  .modal-body {
    position: relative;
    height: 350px;
  }
  &.small .modal-body {
    height: 310px;
  }
  .secure-category-options {
    margin: 10px 0 0 16px;
    .badge-list {
      margin: 10px 0;
      li {
        margin: 0 4px 8px 0;
        a {
          color: #888;
          cursor: pointer;
        }
        a:hover {
          color: $black;
        }
      }
    }
  }
}

.modal-tab {
  position: absolute;
}

.invite-modal {
  overflow: visible;
  .ember-text-field {
    width: 550px;
  }
}

.reply-where-modal {
  width: 370px;
  margin-left: -185px;
  .modal-footer {
    .btn {
      text-align: left;
      font-size: 18px;
      line-height: 20px;
      width: 310px;
      margin-bottom: 10px;
      display: block;
      margin-left: 0;
      .topic-title {
        font-size: 13px;
        font-weight: normal;
        white-space: nowrap;
        overflow: hidden;
        text-overflow: ellipsis;
      }
      &.btn-reply-here {
        @include linear-gradient(#ddd, #ddd);
        text-shadow: none;
        color: $darkish_gray;
      }
    }
    .cancel {
      text-decoration: underline;
      float: right;
      margin-right: 5px;
    }
  }
}

.permission-list{
  list-style:none;
  margin: 0 0 30px;
  padding: 0;
  .name {
    margin-right: 20px;
    display: inline-block;
    min-width: 100px;
  }
  .permission {
    margin-left: 20px;
  }
  .icon-remove-sign {
    margin-left: 5px;
  }
  li {
    margin-bottom: 10px;
  }
}