.video-container {
    position: relative;
    padding-bottom: 56.25%; /* ratio 16x9 */
    height: 0;
    overflow: hidden;
    width: 100%;
    height: auto;
}
.video-container iframe {

    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}
/* ratio 4x3 */
.video-container.ratio4x3 {
    padding-bottom: 75%;
}

iframe {
    border: 0px;
}

h2 {
    font-size: 26px;
}

h3 {
    font-size: 24px;
}

h4 {
    font-size: 22px;
}

h5 {
    font-size: 18px;
}

h6 {
    font-size: 16px;
}

.m-0 { margin: 0px !important; }
.m-1 { margin: 1px !important; }
.m-2 { margin: 2px !important; }
.m-3 { margin: 3px !important; }
.m-4 { margin: 4px !important; }
.m-5 { margin: 5px !important; }
.m-10 { margin: 10px !important; }
.m-15 { margin: 15px !important; }
.m-20 { margin: 20px !important; }
.m-25 { margin: 25px !important; }
.m-30 { margin: 30px !important; }
.m-35 { margin: 35px !important; }
.m-40 { margin: 40px !important; }

.m-t-0 { margin-top: 0px !important; }
.m-t-1 { margin-top: 1px !important; }
.m-t-2 { margin-top: 2px !important; }
.m-t-3 { margin-top: 3px !important; }
.m-t-4 { margin-top: 4px !important; }
.m-t-5 { margin-top: 5px !important; }
.m-t-10 { margin-top: 10px !important; }
.m-t-15 { margin-top: 15px !important; }
.m-t-20 { margin-top: 20px !important; }
.m-t-25 { margin-top: 25px !important; }
.m-t-30 { margin-top: 30px !important; }
.m-t-35 { margin-top: 35px !important; }
.m-t-40 { margin-top: 40px !important; }

.m-b-0 { margin-bottom: 0px !important; }
.m-b-1 { margin-bottom: 1px !important; }
.m-b-2 { margin-bottom: 2px !important; }
.m-b-3 { margin-bottom: 3px !important; }
.m-b-4 { margin-bottom: 4px !important; }
.m-b-5 { margin-bottom: 5px !important; }
.m-b-10 { margin-bottom: 10px !important; }
.m-b-15 { margin-bottom: 15px !important; }
.m-b-20 { margin-bottom: 20px !important; }
.m-b-25 { margin-bottom: 25px !important; }
.m-b-30 { margin-bottom: 30px !important; }
.m-b-35 { margin-bottom: 35px !important; }
.m-b-40 { margin-bottom: 40px !important; }