body
{
    display: flex;
    flex-direction: column;
    background-color:#00d8f4;
    margin: 8px;
}
li
{
    position:relative;
}
#header
{
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-content: center;
    margin-bottom: 4px;
}
.header_element
{
    display: flex;
    justify-content: center;
    flex: 1;
    background-color: rgba(0, 0, 0, 0.1);   
}
.header_element:hover
{
    background-color: #ffffd4;
}
#content_body
{
    flex: 0 0 auto;
    display: flex;
    flex-direction: row;
}
.add_tag_button, #search_go_button
{
    border-top: 2px solid #c2ffc3;
    border-left: 2px solid #c2ffc3;
    border-right: 2px solid #259427;
    border-bottom: 2px solid #259427;
    background-color: #6df16f;
}
.add_tag_button:active, #search_go_button:active
{
    border-top: 2px solid #259427;
    border-left: 2px solid #259427;
    border-right: 2px solid #c2ffc3;
    border-bottom: 2px solid #c2ffc3;
}
.remove_tag_button,
.remove_tag_button_perm
{
    position: absolute;
    top: 3px;
    width:  18px;
    height: 14px;
    padding: 0;
    vertical-align: middle;
    background-color: #ff4949;
    border-top: 2px solid #ffacac;
    border-left: 2px solid #ffacac;
    border-right: 2px solid #bd1b1b;
    border-bottom: 2px solid #bd1b1b;
}
.remove_tag_button
{
    display: none;
}
.tag_object:hover + .remove_tag_button,
.remove_tag_button:hover,
.remove_tag_button_perm:hover
{
    display:inline;
}
.remove_tag_button:active,
.remove_tag_button_perm:active
{
    border-top: 2px solid #bd1b1b;
    border-left: 2px solid #bd1b1b;
    border-right: 2px solid #ffacac;
    border-bottom: 2px solid #ffacac;
}
.photo_card_list
{
    background-color: #ffffd4;
    display: block;
    padding: 4px;
    margin: 8px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
}
.photo_card_grid
{
    display: inline-flex;
    flex-direction: column;
    box-shadow: 2px 2px 5px 0px rgba(0,0,0,0.25);
    min-width: 150px;
    max-width: 300px;
    height: 200px;
    background-color: #ffffd4;
    padding: 8px;
    margin: 8px;
    border-radius: 8px;
    vertical-align: middle;
}
.photo_card_grid_thumb
{
    display:flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    width:  100%;
    height: 150px;
}
.photo_card_grid_thumb a
{
    display:flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;

    width: 100%;
    height: 100%;
}
.photo_card_grid_thumb img
{
    max-width: 100%;
    max-height: 100%;
    height: auto;
}
.photo_card_grid_info
{
    display: flex;
    flex: 1;
    flex-direction: column;
    justify-content: space-between;
    font-size: 12.8px;
    background-color: inherit;

    /*
    The width of photo cards should be based on the aspect ratio of the
    thumbnail image. Previously, I had problems where the card would be wider
    than necessary because the file had a long name.
    These min-width:100% + width:0 prevent the info div from controlling
    card size, prioritizing the thumbnail.
    */
    min-width: 100%;
    width: 0;
}
.photo_card_grid_filename
{
    background-color: inherit;
    max-height: 30px;
    overflow: hidden;
    align-self: flex-start;
    word-break:break-word;
    z-index: 1;
}
.photo_card_grid_filename a
{
    background-color: inherit;
}
.photo_card_grid_filename:hover
{
    overflow: visible;
}
.photo_card_grid_file_metadata
{
    font-family: monospace;
    font-size: 12px;
    display: flex;
    justify-content: space-between;
    z-index: 0;
}
.photo_card_grid_tags
{
    align-self: flex-start;
}
.tag_object
{
    font-size: 0.9em;
    background-color: #fff;
    border-radius: 2px;
    text-decoration: none;
    font-family: monospace;
    line-height: 1.3;
}
#message_area
{
    overflow-y: auto;
    background-color: rgba(0, 0, 0, 0.1);
    width: 100%;
    height: 100%;
    max-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content center;
    align-items: center;
    flex: 2;
}
.message_positive, .message_negative
{
    width: 80%;
    margin: 4px;
}
.message_positive
{
    background-color: #afa;
}
.message_negative
{
    background-color: #faa;
}