css
.button {
width: 150px;
height: 80px;
}
.wrapper .button-wrapper {
position: relative;
}
.button {
position: absolute;
}
.wrapper .button-wrapper:last-child .button {
bottom: 0;
right: 0;
}
.button::after {
content: "";
width: 10px;
height: 10px;
border-radius: 50%;
background-color: red;
position: absolute;
right: 70px;
bottom: -5px;
}