tabler.tabler/core/scss/ui/_avatars.scss

.avatar {
  --#{$prefix}avatar-size: var(--#{$prefix}avatar-list-size, #{$avatar-size});
  --#{$prefix}avatar-status-size: #{$avatar-status-size};
  --#{$prefix}avatar-bg: #{$avatar-bg};
  --#{$prefix}avatar-box-shadow-color: var(--#{$prefix}border-color-translucent);
  --#{$prefix}avatar-box-shadow: inset 0 0 0 1px var(--#{$prefix}avatar-box-shadow-color);
  --#{$prefix}avatar-font-size: #{$avatar-font-size};
  --#{$prefix}avatar-icon-size: #{$avatar-icon-size};
  --#{$prefix}avatar-brand-size: #{$avatar-brand-size};
  position: relative;
  width: var(--#{$prefix}avatar-size);
  height: var(--#{$prefix}avatar-size);
  font-size: var(--#{$prefix}avatar-font-size);
  font-weight: var(--#{$prefix}font-weight-medium);
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--#{$prefix}secondary);
  text-align: center;
  text-transform: uppercase;
  vertical-align: bottom;
  user-select: none;
  background: var(--#{$prefix}avatar-bg) no-repeat center/cover;
  border-radius: $avatar-border-radius;
  box-shadow: var(--#{$prefix}avatar-box-shadow);
  transition: color $transition-time, background-color $transition-time, box-shadow $transition-time;

  .icon {
    width: var(--#{$prefix}avatar-icon-size);
    height: var(--#{$prefix}avatar-icon-size);
  }

  .badge {
    position: absolute;
    right: 0;
    bottom: 0;
    border-radius: $border-radius-pill;
    box-shadow: 0 0 0 calc(var(--#{$prefix}avatar-status-size) / 4) $card-bg;
  }

  @at-root a#{&} {
    cursor: pointer;
    
    &:hover {
      color: var(--#{$prefix}primary);
      --#{$prefix}avatar-box-shadow-color: var(--#{$prefix}primary);
    }
  }
}

.avatar-rounded {
  border-radius: $border-radius-pill;
}

@each $avatar-size, $size in $avatar-sizes {
  .avatar-#{$avatar-size} {
    --#{$prefix}avatar-size: #{map-get($size, size)};
    --#{$prefix}avatar-status-size: #{map-get($size, status-size)};
    --#{$prefix}avatar-font-size: #{map-get($size, font-size)};
    --#{$prefix}avatar-icon-size: #{map-get($size, icon-size)};
    --#{$prefix}avatar-brand-size: #{map-get($size, brand-size)};

    .badge:empty {
      width: map-get($size, status-size);
      height: map-get($size, status-size);
    }
  }
}

//
// Avatar list
//
.avatar-list {
  --#{$prefix}avatar-list-size: #{$avatar-size};
  @include elements-list;

  a.avatar {
    &:hover {
      z-index: 1;
    }
  }
}

.avatar-list-stacked {
  display: block;
  --#{$prefix}list-gap: 0;

  .avatar {
    margin-right: calc(#{$avatar-list-spacing} * var(--#{$prefix}avatar-size)) !important;
    box-shadow: var(--#{$prefix}avatar-box-shadow), 0 0 0 2px var(--#{$prefix}card-bg, var(--#{$prefix}bg-surface));
  }
}

@each $avatar-size, $size in $avatar-sizes {
  .avatar-list-#{$avatar-size} {
    --#{$prefix}avatar-list-size: #{map-get($size, size)};
  }
}

//
// Avatar upload
//
.avatar-upload {
  border: var(--#{$prefix}border-width) dashed var(--#{$prefix}border-color);
  background: $form-check-input-bg;
  box-shadow: none;
  flex-direction: column;
  @include transition(color $transition-time, background-color $transition-time);

  svg {
    width: 1.5rem;
    height: 1.5rem;
    stroke-width: 1;
  }

  &:hover {
    border-color: var(--#{$prefix}primary);
    color: var(--#{$prefix}primary);
    text-decoration: none;
  }
}

.avatar-upload-text {
  font-size: $h6-font-size;
  line-height: 1;
  margin-top: .25rem;
}

.avatar-cover {
  margin-top: calc(-.5 * var(--#{$prefix}avatar-size));
  box-shadow: 0 0 0 .25rem var(--#{$prefix}card-bg, var(--#{$prefix}body-bg));
}

.avatar-brand {
  width: var(--#{$prefix}avatar-brand-size);
  height: var(--#{$prefix}avatar-brand-size);
  position: absolute;
  right: -2px;
  bottom: -2px;
  z-index: 1000;
  background: var(--#{$prefix}bg-surface);
  border-radius: var(--#{$prefix}border-radius);
  border: 1px solid var(--#{$prefix}border-color);
}