.mpopup {
    display: none;
    position: fixed;
    z-index: 1;
    padding-top: 100px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.4);
}

.modal-content {
    position: relative;
    background-color: #fff;
    margin: auto;
    padding: 0;
    width: 450px;
    box-shadow: 0 4px 8px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19);
    -webkit-animation-name: animatetop;
    -webkit-animation-duration: 0.4s;
    animation-name: animatetop;
    animation-duration: 0.4s;
    border-radius: 0.3rem;
}

.modal-header {
    padding: 2px 12px;
    background-color: #ffffff;
    color: #333;
    border-bottom: 1px solid #e9ecef;
    border-top-left-radius: 0.3rem;
    border-top-right-radius: 0.3rem;
}

    .modal-header h2 {
        font-size: 1.25rem;
        margin-top: 14px;
        margin-bottom: 14px;
    }

.modal-body {
    padding: 2px 12px;
}

.modal-footer {
    padding: 1rem;
    background-color: #ffffff;
    color: #333;
    border-top: 1px solid #e9ecef;
    border-bottom-left-radius: 0.3rem;
    border-bottom-right-radius: 0.3rem;
    text-align: right;
}

.close {
    color: #888;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

    .close:hover, .close:focus {
        color: #000;
        text-decoration: none;
        cursor: pointer;
    }

/* add animation effects */
@-webkit-keyframes animatetop {
    from {
        top: -300px;
        opacity: 0
    }

    to {
        top: 0;
        opacity: 1
    }
}

@keyframes animatetop {
    from {
        top: -300px;
        opacity: 0
    }

    to {
        top: 0;
        opacity: 1
    }
}