ensl.org/app/assets/stylesheets/components/_flashes.scss

/*
  Flash Messages
*/

.flash {
  @include span-columns(12);
  margin-bottom: 20px;
  font-weight: 600;

  &.notice {
    @include flash;
  }

  &.success {
    @include flash($flash-success);
    
    &:before {
      content: "\f00c";
    }
  }

  &.error {
    @include flash($flash-error);

    &:before {
      content: "\f00d";
    }
  }

  &.warning,
  &.alert {
    @include flash($flash-warning);

    &:before {
      content: "\f071";
    }
  }
}

/*
  Error Messages
*/

div#errors {
  @extend .flash.error;
  @include span-columns(12);
  margin-bottom: 20px;

  strong {
    @include span-columns(12);
    margin-bottom: 10px;
  }

  ul.errors {
    @include span-columns(12);

    li {
      margin-bottom: 0;

      &:last-child {
        margin-bottom: 0;
      }
    }
  }
}

/*
  Banner flash messages
*/

#notification {
  position: absolute;
  margin: 0 auto;
  left: 50%;
  top: 0;

  .message {
    background: image-url('layout/flash-notice-background.png');
    position: relative;
    width: 730px;
    height: 60px;
    left: -50%;
    text-align: center;
    font-family: $header-font-family;
    font-size: 22px;
    color: white;
    line-height: 45px;
    padding: 0 100px;
    z-index: 2;

    &:before {
      background: image-url('layout/flash-notice-icon.png');
      content: '';
      display: block;
      width: 30px;
      height: 30px;
      position: absolute;
      top: 5px;
      left: 60px;
    }

    &.warning,
    &.error,
    &.alert {
      background: image-url('layout/flash-error-background.png');

      &:before {
        background: image-url('layout/flash-error-icon.png');
      }
    }
  }
}