.lastpostav {
  height: 40px;
  width: 40px;
  border: 1px solid #d8dfea;
  border-radius: 50%;
  padding: 4px;
  margin-right: 8px;
  float: left;
  opacity: 0.8;
  overflow: hidden;
}

.lastpostav img {
  width: 100%;
  height: 100%;
  border-radius: 50%;
}