#list-builder {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: #333;
    filter: alpha(opacity=80);
    opacity: 0.8;
    display: none;
z-index: 999;
}

#popup-box {
    position: fixed;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background-color: #5a5a5b;
    color: #FFFFFF;
    width: 70%;
    max-width: 70%;
    padding: 30px;
    border: 10px solid  #FFFFFF;
    display: none;
    z-index: 1000;
}

#popup-close {
    position: absolute;
    top: -25px;
    right: -25px;
    cursor: pointer;
    width: 40px;
}

#popup-box h1 {
    margin: 0;
}

#popup-box form {
    margin-bottom: 0px;
}

#popup-box input {
    padding: 10px;
    border: 1px solid #333;
    width: 40%;
}

#popup-box button {
    padding: 10px;
    border: 1px solid #333;
}

#response-content{
    display: none;
}

@media (max-width: 600px){
    h1{
        font-size: 16px;
    }

    h1{
        font-size: 16px;
    }

    #popup-box-content2 p{
        font-size: 14px;
    }
}