@media only screen and (max-width: 620px) {
            .circle {
                width: 30px;
                height: 30px;
                border-radius: 50%;
                background-color: #ddd;
                display: inline-block;
                line-height: 30px;
                font-size: 14px;
                color: #fff;
            }

            .label {
                display: block;
                margin-top: 8px;
                font-size: 12px;
                color: #555;
            }

            .line {
                display: inline-block;
                width: 2px;
                height: 2px;
                background-color: #ddd;
                vertical-align: middle;
            }

            table[class="body"] h1 {
                font-size: 28px !important;
                margin-bottom: 10px !important;
            }

            table[class="body"] p,
            table[class="body"] ul,
            table[class="body"] ol,
            table[class="body"] td,
            table[class="body"] span,
            table[class="body"] a {
                font-size: 16px !important;
            }

            table[class="body"] .wrapper,
            table[class="body"] .article {
                padding: 10px !important;
            }

            table[class="body"] .content {
                padding: 0 !important;
            }

            table[class="body"] .container {
                padding: 0 !important;
                width: 100% !important;
            }

            table[class="body"] .main {
                border-left-width: 0 !important;
                border-radius: 0 !important;
                border-right-width: 0 !important;
            }

            table[class="body"] .btn table {
                width: 100% !important;
            }

            table[class="body"] .btn a {
                width: 100% !important;
            }

            table[class="body"] .img-responsive {
                height: auto !important;
                max-width: 100% !important;
                width: auto !important;
            }
        }

        /* -------------------------------------
        PRESERVE THESE STYLES IN THE HEAD
    ------------------------------------- */
        @media all {

            .stepper {
                margin-top: 15px;
                margin-bottom: 15px;
            }

            .step {
                display: inline-block;
                text-align: center;
            }

            .circle {
                width: 40px;
                height: 40px;
                border-radius: 50%;
                background-color: #ddd;
                display: inline-block;
                line-height: 40px;
                font-size: 18px;
                color: #fff;
            }

            .label {
                display: block;
                margin-top: 8px;
                font-size: 14px;
                color: #555;
            }

            .line {
                display: inline-block;
                width: 40px;
                height: 2px;
                background-color: #ddd;
                vertical-align: middle;
            }

            .step.active .circle {
                background-color: #ff9800;
            }

            .step.active .label {
                color: #ff9800;
            }

            .step.finish .circle {
                background-color: #4CAF50;
            }

            .step.finish .label {
                color: #4CAF50;
            }

            .ExternalClass {
                width: 100%;
            }

            .ExternalClass,
            .ExternalClass p,
            .ExternalClass span,
            .ExternalClass font,
            .ExternalClass td,
            .ExternalClass div {
                line-height: 100%;
            }

            .apple-link a {
                color: inherit !important;
                font-family: inherit !important;
                font-size: inherit !important;
                font-weight: inherit !important;
                line-height: inherit !important;
                text-decoration: none !important;
            }

            #MessageViewBody a {
                color: inherit;
                text-decoration: none;
                font-size: inherit;
                font-family: inherit;
                font-weight: inherit;
                line-height: inherit;
            }

            .btn-primary table td:hover {
                background-color: #4caf50 !important;
            }

            .btn-primary a:hover {
                background-color: #4caf50 !important;
                border-color: #4caf50 !important;
            }
        }