body {
background-color:rgb(237, 237, 237);
  padding: 20px;
  font-family: sans-serif, arial;
}
h1 {
  text-align: center;
  margin-bottom: 30px;
}
#name {
  height: 30px;
  width: 100%;
  margin-bottom:20px;
  margin-top: 5px;
}
#email {
  height: 30px;
  width: 100%;
  margin-bottom:20px;
  margin-top: 5px;
}
#position {
  height: 30px;
  width: 100%;
  margin-bottom:20px;
  margin-top: 5px;
  box-sizing: border-box;
}
.container {
  background-color: white;
  border-radius: 10px;
  padding: 30px;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
  box-shadow:2px 2px 5px rgb(201, 201, 201);
}
input {
  border-radius: 5px;
  box-sizing: border-box;
}
input:focus, textarea:focus {
  border: 1px solid blue;  
}
input:invalid,
select:invalid,
textarea:invalid {
  border: 1px solid red;
}
textarea {
  width: 100%;
  height: 80px;
  margin-bottom: 20px;
  margin-top: 5px;
  box-sizing: border-box;
}
input:valid,
select:valid,
textarea:valid {
  border: 1px solid green;
  border-radius: 5px;
}
button {
  background-color: green;
  color: white;
  width: 100%;
  height: 40px;
  border-radius: 5px;
  font-size: 1.1rem;
  border:none;
}
button:hover {
  background-color: black;
  color: white;
  transition: all 0.5s ease;
}
.radio-group input[type="radio"]:checked {
  -webkit-appearance: none; /* Chrome, Safari */
  -moz-appearance: none;    /* Firefox */
  appearance: none;         /* standard */
  border-color: green;
  background-color: green;
  box-shadow:2px 2px 5px rgb(201, 201, 201);
  width: 17px;
  height: 17px;
  border: 1px solid #ccc;
  border-radius: 50%;
  transition: all 0.2s ease;
}
input:first-of-type {
  background-color: rgb(246, 242, 242);
}
.radio-group input[type="radio"]:checked + label {
  color: green;
}
.radio-group {
  margin-bottom:20px;
  width: 100%;
  height: 60px;
  box-sizing: border-box;
}