app/assets/css/modal.css

/* Modal Base CSS */
.mauticForm-overlay
{
    position: fixed;
    z-index: 9998;
    top: 0;
    left: 0;

    opacity: 0;

    width: 100%;
    height: 100%;

    -webkit-transition: 1ms opacity ease;
    -moz-transition: 1ms opacity ease;
    -ms-transition: 1ms opacity ease;
    -o-transition: 1ms opacity ease;
    transition: 1ms opacity ease;

    background: rgba(0,0,0,.6);
}

.mauticForm-modal
{
    position: absolute;
    z-index: 9999;
    top: 50%;
    left: 50%;

    opacity: 0;

    width: 94%;
    padding: 24px 20px;

    -webkit-transition: 1ms opacity ease;
    -moz-transition: 1ms opacity ease;
    -ms-transition: 1ms opacity ease;
    -o-transition: 1ms opacity ease;
    transition: 1ms opacity ease;

    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);

    border-radius: 2px;
    background: #fff;
}

.mauticForm-modal.mauticForm-open.mauticForm-anchored
{
    top: 20px;

    -webkit-transform: translate(-50%, 0);
    -moz-transform: translate(-50%, 0);
    -ms-transform: translate(-50%, 0);
    -o-transform: translate(-50%, 0);
    transform: translate(-50%, 0);
}

.mauticForm-modal.mauticForm-open
{
    opacity: 1;
}

.mauticForm-overlay.mauticForm-open
{
    opacity: 1;

}

/* Close Button */
.mauticForm-close
{
    font-family: Helvetica,Arial,sans-serif;
    font-size: 24px;
    font-weight: 700;
    line-height: 12px;

    position: absolute;
    top: 5px;
    right: 5px;

    padding: 5px 7px 7px;

    cursor: pointer;

    color: #fff;
    border: 0;
    outline: none;
    background: #e74c3c;
}

.mauticForm-close:hover
{
    background: #c0392b;
}

/* Default Animation */

.mauticForm-overlay.fade-and-drop
{
    display: block;

    opacity: 0;
}

.mauticForm-modal.fade-and-drop
{
    top: -300%;

    opacity: 1;

    display: block;
}

.mauticForm-modal.fade-and-drop.mauticForm-open
{
    top: 50%;

    -webkit-transition: 500ms top 500ms ease;
    -moz-transition: 500ms top 500ms ease;
    -ms-transition: 500ms top 500ms ease;
    -o-transition: 500ms top 500ms ease;
    transition: 500ms top 500ms ease;
}

.mauticForm-modal.fade-and-drop.mauticForm-open.mauticForm-anchored
{

    -webkit-transition: 500ms top 500ms ease;
    -moz-transition: 500ms top 500ms ease;
    -ms-transition: 500ms top 500ms ease;
    -o-transition: 500ms top 500ms ease;
    transition: 500ms top 500ms ease;
}

.mauticForm-overlay.fade-and-drop.mauticForm-open
{
    top: 0;

    -webkit-transition: 500ms opacity ease;
    -moz-transition: 500ms opacity ease;
    -ms-transition: 500ms opacity ease;
    -o-transition: 500ms opacity ease;
    transition: 500ms opacity ease;

    opacity: 1;
}

.mauticForm-modal.fade-and-drop
{
    -webkit-transition: 500ms top ease;
    -moz-transition: 500ms top ease;
    -ms-transition: 500ms top ease;
    -o-transition: 500ms top ease;
    transition: 500ms top ease;
}

.mauticForm-overlay.fade-and-drop
{
    -webkit-transition: 500ms opacity 500ms ease;
    -moz-transition: 500ms opacity 500ms ease;
    -ms-transition: 500ms opacity 500ms ease;
    -o-transition: 500ms opacity 500ms ease;
    transition: 500ms opacity 500ms ease;
}

.mauticForm-content {
    height: 100%;
}