.jumbotron {
            padding-left: 2em;
            padding-right: 2em;
            text-align: justify;
            padding-top: 25px;
            padding-bottom: 25px;

        }
        .contador{
            font-size: 15px;
        }
        .js-title-step{
            color:white;
        }
        .container_chat {
            margin-top: 70px;
            text-align: center;
        }
        .label-success {
            background-color: rgba(0, 159, 227, 0.9);
        }
        .modal-header {
            padding: 15px;
            border-bottom: 1px solid #e5e5e5;
            background-color: rgba(0, 159, 227, 0.9);
        }
        .header_letter{
        color: white;
        }
        .btn-warning {
            color: #ffffff;
            background-color: rgba(0, 159, 227, 0.9);
            border-color: rgba(0, 159, 227, 0.9);
        }
        .btn-warning[disabled]{
            background-color: rgba(0, 159, 227, 0.9);
            border-color: rgba(0, 159, 227, 0.9);
        }
        .btn-warning:hover {
            color: #ffffff;
            background-color: rgba(6, 179, 251, 0.9);
            border-color: rgba(6, 179, 251, 0.9);
        }
        .btn-warning[disabled]:hover {
            background-color: rgba(6, 179, 251, 0.9);
            border-color: rgba(6, 179, 251, 0.9);
        }
        .btn-warning:active,.btn-warning.active,.open>.dropdown-toggle.btn-warning {
            color:#ffffff;
            background-color:rgba(6, 179, 251, 0.9);
            border-color:rgba(6, 179, 251, 0.9);
        }
        .btn-warning:active:hover,.btn-warning.active:hover,.open>.dropdown-toggle.btn-warning:hover,.btn-warning:active:focus,.btn-warning.active:focus,.open>.dropdown-toggle.btn-warning:focus,.btn-warning:active.focus,.btn-warning.active.focus,.open>.dropdown-toggle.btn-warning.focus {
            color:#ffffff;
            background-color:rgba(6, 179, 251, 0.9);
            border-color:rgba(6, 179, 251, 0.9);
        }
        .btn-warning.disabled:hover,.btn-warning[disabled]:hover,fieldset[disabled] .btn-warning:hover,.btn-warning.disabled:focus,.btn-warning[disabled]:focus,fieldset[disabled] .btn-warning:focus,.btn-warning.disabled.focus,.btn-warning[disabled].focus,fieldset[disabled] .btn-warning.focus {
            background-color:rgba(6, 179, 251, 0.9);
            border-color:rgba(6, 179, 251, 0.9);
        }
        .btn-warning:focus, .btn-warning.focus {
            color: #ffffff;
            background-color: rgba(6, 179, 251, 0.9);
            border-color: rgba(6, 179, 251, 0.9);
        }
        .btn-warning.disabled, .btn-warning[disabled], fieldset[disabled] .btn-warning, .btn-warning.disabled:hover, .btn-warning[disabled]:hover, fieldset[disabled] .btn-warning:hover, .btn-warning.disabled:focus, .btn-warning[disabled]:focus, fieldset[disabled] .btn-warning:focus, .btn-warning.disabled.focus, .btn-warning[disabled].focus, fieldset[disabled] .btn-warning.focus, .btn-warning.disabled:active, .btn-warning[disabled]:active, fieldset[disabled] .btn-warning:active, .btn-warning.disabled.active, .btn-warning[disabled].active, fieldset[disabled] .btn-warning.active 
        {
            background-color: rgba(6, 179, 251, 0.9);;
            border-color: rgba(6, 179, 251, 0.9);;
        }
        .btn-success {
            color: #ffffff;
            background-color: rgba(0, 159, 227, 0.9);
            border-color: rgba(0, 159, 227, 0.9);
        }
        .btn-success:hover {
            color: #ffffff;
            background-color: rgba(6, 179, 251, 0.9);
            border-color: rgba(0, 159, 227, 0.9);
        }
        .btn-success:focus, .btn-success.focus {
            color: #ffffff;
            background-color: rgba(6, 179, 251, 0.9);
            border-color: rgba(6, 179, 251, 0.9);
        }
        .btn-success:active,.btn-success.active,.open>.dropdown-toggle.btn-success {
            color:#ffffff;
            background-color: rgba(6, 179, 251, 0.9);
            border-color: rgba(6, 179, 251, 0.9)
        }
        .btn-success:active:hover,.btn-success.active:hover,.open>.dropdown-toggle.btn-success:hover,.btn-success:active:focus,.btn-success.active:focus,.open>.dropdown-toggle.btn-success:focus,.btn-success:active.focus,.btn-success.active.focus,.open>.dropdown-toggle.btn-success.focus {
            color:#ffffff;
            background-color: rgba(6, 179, 251, 0.9);
            border-color: rgba(6, 179, 251, 0.9)
        }
        .btn-success.disabled:hover,.btn-success[disabled]:hover,fieldset[disabled] .btn-success:hover,.btn-success.disabled:focus,.btn-success[disabled]:focus,fieldset[disabled] .btn-success:focus,.btn-success.disabled.focus,.btn-success[disabled].focus,fieldset[disabled] .btn-success.focus {
            background-color:#18bc9c;
            border-color:#18bc9c
        }