.edit_block {
  display: block;
  width: 80%;
  max-width: 240px;
  margin: .4em auto;
  background-color: rgba(0,0,0,.5);
  color: #ff0;
  font-size: 14px!important;
  font-weight: normal;
  text-shadow: 1px 1px 1px transparent;
  padding: 0.5em;
  text-decoration: none;
  text-transform: none;
  text-align: center;
}

.edit_block:hover {
  background-color: rgba(255,255,0,1);
  color: #000;
}