.iframe_wrapper {
    margin-top: 16px;
    margin-bottom: 16px;
    margin-right: auto;
    margin-left: auto;
    display: block;
    border-radius:20px;
    -webkit-border-radius: 20px;
    -o-border-radius: 20px;
    width: 50%;
    height: 360px;
    -webkit-box-shadow: 5px 5px 5px 0px rgba(119, 119, 119, 0.74);
    box-shadow: 5px 5px 5px 0px rgba(119, 119, 119, 0.74);
    border: 0px solid #000000;
    position: relative;
    overflow: hidden;
}

    .iframe_wrapper iframe {
        width: 50%;
        height: 50%;
    }  

.flex_container {
    display: flex;
    flex-direction: row;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    flex-direction: row;
}

.rc_navbutton_anchor {
    text-decoration: none;
}

.rc_navbutton {
    -moz-box-shadow: 0px 0px 0px 4px #12748f;
    -webkit-box-shadow: 0px 0px 0px 4px #12748f;
    box-shadow: 0px 0px 0px 4px #12748f;
    background-color: #002e62;
    border: 3px solid #b9ddc3;
    cursor: pointer;
    color: #ffffff;
    font-family: Verdana;
    font-weight: bold;
    font-style: italic;
    padding: 5px;
    width: 142px;
    height: 40px;
    display: flex;
    flex: none;
    justify-content: center;
    align-items: center;
    align-content: center; /* flex-wrap: wrap; flex-direction:row;*/
    margin: 5px;
    flex-grow: 0;
}

    .rc_navbutton:hover {
        background-color: #002e62;
    }

    .rc_navbutton:active {
        position: relative;
        top: 1px;
    }

.rc_navbutton_subtext {
    display: block;
    font-size: 12px;
    text-align: center;
    color: #5f93c6;
}

.rc_navbutton_maintext {
    display: block;
    font-size: 14px;
    text-align: center;
    color: white;
    flex-grow: 0;
}

.centerimg {
    margin-right: auto;
    margin-left: auto;
    display: block;
}

.tbmargin {
    margin-top: 16px;
    margin-bottom: 16px;
}