cur_script = """
    <style class="js-load-remove-tag">
        .cs-loading:after {
            overflow: hidden;
            display: inline-block;
            vertical-align: bottom;
            -webkit-animation: cs-ellipsis steps(3,end) 3250ms infinite;      
            animation: cs-ellipsis steps(3,end) 3250ms infinite;
            content: "\\2026";
            width: 0px;
        }
        @keyframes cs-ellipsis { to { width: 0.9em; } }
        @-webkit-keyframes cs-ellipsis { to { width: 0.9em; } }
    </style>

    <script class="js-load-remove-tag">
      \$(".js-load-remove-tag").parent(".output_subarea").css("padding", "0");
    </script>
"""

display(HTML(cur_script))

using Suppressor

@suppress using Tetris
@suppress Tetris.setup()

cur_script = """
    <script class="js-load-remove-tag">
        \$(".js-load-message").remove();
        \$("#appmode-busy").css("opacity","0");
        \$('pre:contains("WebIO: setting up")').parent(".output_subarea").remove();
        \$(".js-load-remove-tag").parent(".output_subarea").remove();
    </script>
"""

display(HTML(cur_script))