.wrapper{
/*    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);*/
    padding: 20px;
    background: #fff;
    /*width: 700px;*/
    border-radius: 10px;
    z-index: 999;
    margin: 0 auto;
 }
.wrapper > h1{
    text-align: center; 
    font-size: 1.75em;
}
.wrapper .book{
    display: none;
}
/*.wrapper p, .wrapper form{
    padding: 0 25px;
}*/
.BLK_LU li {
    width: 450px;
    margin: 0;
    margin-top: 15px;
}
.BLK_LU li input{
    border: none;
    padding: 0;
    border-bottom: 1px solid #212529;
    width: 100%;
    height: 35px;
    text-indent: 25px;
    outline: none;
    box-shadow: unset;
    border-radius: unset;
}
.BLK_LU li > div {
    position: relative;
}
.BLK_LU li > div > div {
    position: absolute;
}
.BLK_LU li input[type="button"]{
    height: 45px;
    font-size: 1.2em;
    border: none;
    margin: 30px 0;
}
/*@media only screen and (min-width: 501px) and (max-width: 1024px) {
    .wrapper {
        width: 75%;
    }
}*/
@media only screen and (min-width: 0) and (max-width: 500px) {
/*    .wrapper {
        width: 70%;
    }*/
    .wrapper > h1 {
        font-size: 1.5em;
    }
    .wrapper p, .wrapper form {
        padding: 0 10px;
    }
    .BLK_LU li {
        width: 100%;
    }
}