.button {
  display: inline-block;
  width: 300px;
  height: 50px;
  text-align: center;
  text-decoration: none;
  line-height: 50px;
  outline: none;
}
.button::before,
.button::after {
  position: absolute;
  z-index: -1;
  display: block;
  content: '';
}
.button,
.button::before,
.button::after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
  -webkit-transition: all .3s;
  transition: all .3s;
}

.button {
  background-color: #f3f3f3;
  color: #000;
}
.button:hover {
  background-color: #555555;
  color: #fff;
}

#ATTAZooPlus-versionup {
  border: double;
  height: 100px;
}

textarea {
  resize: none;
}

.indent1 {
  margin-left: 35px;
}

.indentExample {
  padding-left: 2.5em;
  text-indent: -2.5em;
}

.crimson {
  color: rgb(220, 20, 60);
}