            padding: 10px 20px;
            margin: 0 -20px 12px -20px;
        }
        .letters {
            font-size: 25px;
            margin-bottom: 20px;
        }
        .s10:before {
            content: '10px';
        }
        .s11:before {
            content: '11px';
        }
        .s12:before {
            content: '12px';
        }
        .s14:before {
            content: '14px';
        }
        .s18:before {
            content: '18px';
        }
        .s24:before {
            