how to add little stickers to the side

just copy this!<3 it doesnt have to be a gif dw.
}
.url a {
display: none;
}
.url {
font-size: 0px;
background: url(LINK TO GIF HERE);
background-size: 310px;
position: fixed;
right: 0;
bottom: 0;
color: transparent !important;
height: 256px;
width: 256px;
border: none;
box-shadow: none;
padding: 0 !important;
z-index: 1000;