form.css

html,body{
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color:  rgb(171,221,230);;
}
input[type=radio]{
    text-align: left;
}
form{
    text-align: center;
    width: 50%;
    margin: auto;
    background-color: rgb(255, 245, 238);
    border-radius: 0px 15px 0px 15px;
    border: 4px solid black;
}
h1{
    margin: -1px;
    text-align: center;
    background-color: blue;
    color: white;
    border-radius: 0px 15px 0px 0px;
}
input[type=number],input[type=text],input[type=date],input[type=time], .sel{
    height: 40px;
    width: 50%;
    padding: 5px;
    display: inline-block;
    margin: 3px 0 3px 0;
    border-radius: 5px 5px 5px 5px;
    border: 1px solid black;
}
input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
h1{
    font-size: 35px;
    padding: 5px;
}
h3{
    font-weight: 500;
    font-size: 25px;
}
.idcard{
    font-size: 18px;
    font-weight: 400;
}
.gend{
    font-size: 18px; 
}
.regbut, #c100{
  background-color: blue;
  color: white;
  height: 45px;
  width: 125px;
  padding: 16px 20px;
  margin: 8px 0;
  border: none;
  cursor: pointer;
  opacity: 0.6;
}
.regbut:hover, #c100:hover {
    opacity:1;
  }