*, *:before, *:after {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

.clean-block.clean-form form {
  border-top: 2px solid #5ea4f3;
  background-color: #fff;
  max-width: 500px;
  margin: auto;
  padding: 40px;
  box-shadow: 0 2px 10px rgba(0,0,0,.075);
}