#gifPicker .gif-option,
#gifPicker .gif-option img,
.selected-gif-thumb,
.selected-gif-thumb img,
.giphy-picker .giphy-option,
.giphy-picker .giphy-option img,
.message-gifs .message-gif{
    background:transparent!important;
}

#gifPicker .gif-option img,
.giphy-picker .giphy-option img{
    width:100%!important;
    height:100%!important;
    object-fit:contain!important;
}