style.css

.hide-parent { 
  float: right; 
  position: absolute;
  top: 10px;
  right: 10px;
}
.hide-parent:hover { 
  color: #fff !important; 
  border: 0 !important;
}
p! > .hide-parent { 
  background-color: #fff; 
  border: 1px solid #ccc; 
  padding: 10px 30px 10px 10px;
  position: relative;
}
p! > .hide-parent:hover { background-color: #ff4d4d; color: #fff; }
p! > .hide-parent:active { background-color: #F22; color: #fff; }
p! > .hide-parent:click { display: none; }