Reserve.css

body{

margin:0;
padding: 0;
background: url(drink.jpg);
background-size: cover;
background-position: center;
font-family: sans-serif;

}
.form-area {

  width: 320px;
  height: 340px;
  background:  rgba(0, 0, 0, 0.5);  
  color: #9d9d9d;
  top: 50%;
  left: 50%;
  position: absolute;
  transform: translate(-50%,-50%);
  box-sizing: border-box;
}

.form-area p{

margin: 0;
padding: 0;
font-weight: bold;
color: #ffffff;
}

.form-area input{

    width: 100%;
    margin-bottom: 20px;

    border: none;
    border-radius: 30px;
}
.form-area select{

    width: 100%;
    margin-bottom: 20px;

    border: none;
    border-radius: 30px;
}


.form-area input[type=email],
.form-area input[type=password]{

    border: none;
    border-bottom: 1px solid #ffffff;
    background-color: transparent;
    outline: none;
    height: 18px;
    color: #ffffff;
    display: 16px;

}
::placeholder{

    color: silver;
}
.form-area a{
    color:#ffffff ;
    
    font-weight: bold;
}

.form-area h4{

margin: 0;
padding: 0 0 20px;
font-weight: bold;
color: #FFDEAD;
}

.form-area button{
    border: none;
    height: 30px;
    width: 90%;
    outline: none;
    
    font-size: 15px;
    background-color: #FFDEAD;
    cursor: pointer;
    border-radius: 20px;
    float: none;
}
.form-area button:hover{
    background-color: silver   ;
}