form {
   background: url("img/J5f_czTyC2g.jpg");
   background-repeat: no-repeat;
}
form fieldset {
    width: 600px;
    font-size: 30px;
    font-family: serif;
    color: rgb(121, 241, 7);
    border-radius: 10px;
    color: #2d42ff;
    
 }
 form legend, form label {
    font-size: 15px;
    font-weight: bold;
   
 }
 form button {
    height: 50px;
    font-size: 20px;
    background: #3cff00;
    border-radius: 10px;
    padding: 10px 17px;
    line-height: 20px;
    border: none;
 }
 form button:hover {
    background: #2da6ff;
    color: #fff;
 }
 form input {

    width: 200px;
    height: 25px;
    font-size: 15px;
    border-radius: 5px;
    background: rgb(216, 224, 93);
 }
form label {
   font-size: 25px;
}
 
 form input, form textarea {
    margin-bottom: 20px;

 }

.arrow-back{
    position: fixed;
    bottom: 30px;
    right: 30px;
}
.arrow-back a{
    width: 50px;
    height: 50px;
    background: #000;
    text-align: center;
    display: block;
    line-height: 50px;
    border-radius: 50px;
    color: #fff;
    transition: .5s;
}
.arrow-back a:hover{
    background: red;
}