.screen {
    position: absolute;
    left: 0%;
    width: 100%;
    height: 100%;
    z-index: 150;
    background-color: black;
    opacity: 50%;
    
}
.form-container {
    position: absolute;
    z-index: 200;
    top: 30%;
    left: 45%;
    width: 25%;
    height: 50%;
    background-color: #3498DB;
    padding: 1%;
    text-align: center;
    
}
.screen2 {
    position: absolute;
    left: 0%;
    width: 100%;
    height: 100%;
    z-index: 150;
    background-color: black;
    opacity: 50%;
    display: none;
}
.form-container2 {
    position: absolute;
    z-index: 200;
    top: 30%;
    left: 45%;
    width: 25%;
    height: 50%;
    background-color: #3498DB;
    padding: 1%;
    text-align: center;
    display: none;
}
.close {
    position: absolute;
    right: 1%;
    top: 0%;
    cursor: pointer;
    color: red;
}

@media screen and (max-width: 1200px) {
    .form-container {
        top: 20%;
        left: 35%;
        width: 45%;
        height: 30%;
    }

}

@media screen and (max-width: 760px) {
    .form-container {
        top: 20%;
        left: 5%;
        width: 90%;
        height: 50%;
    }

}