*{
  box-sizing: border-box;
}

main {
  margin: 3em 0;
}
body {
  font-size: medium;
  font-family: arial;
  padding: 0;
  margin: 0;
  background: url(https://images.unsplash.com/photo-1606501491472-ec5dba8fbc76?ixlib=rb-1.2.1&ixid=MnwxMjA3fDB8MHxwaG90by1wYWdlfHx8fGVufDB8fHx8&auto=format&fit=crop&w=1528&q=80);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  color: #fff;
}

form {
  border-radius: 4px;
  background: #3335;
  padding: 2em;
  display: grid;
  grid-gap: 2em;
  width: 600px;
  margin: auto;
}
label {
  font-size: large;
  font-weight: bold;
  color: #fff;
}
#name, #email, #number, select, textarea{
  width: 100%;
  padding: 10px;
  outline: none;
  border: none;
  background: #fff;
  margin: .5em 0;
}
textarea {
  font-family: arial;
}
.radioBtnDiv label{
  font-size: medium;
  font-weight: normal;
}

.multplBtn label{
  font-size: medium;
  font-weight: normal;
}
button {
  padding: 10px;
  outline: none;
  border: none;
  background: #fff;
  margin: .5em 0;
  text-transform: uppercase;
  font-weight: bold;
}
button:hover {
background: white;
}
button:active {
background: #ddd;
}

/* Medium devices (landscape tablets, 768px and up) */
@media only screen and (max-width: 768px) {
form {
  width: 80%;
}
}

/* Small devices (portrait tablets and large phones, 600px and up) */
@media only screen and (max-width: 600px) {
form {
  width: 95%;
}
}