how to set background color and border color to a input type checkbox

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ASP.NET

i want to set background color, border color and checked color to a input type check box. how i do do this in folloing code, using css or inline style in asp.net.

<ul class="list-unstyled">
                    <li>
                        <label>
                            <input type="checkbox" name="checkbox"/>DELL</label></li>
                    <li>
                        <label>
                            <input type="checkbox" name="checkbox"/>NIKE</label></li>
                    <li>
                        <label>
                            <input type="checkbox" name="checkbox"/>REEBOK</label></li>
                    <li>
                        <label>
                            <input type="checkbox" name="checkbox"/>ACER</label></li>
                    <li>
                        <label>
                            <input type="checkbox" name="checkbox"/>COTTON</label></li>
                    <li>
                        <label>
                            <input type="checkbox" name="checkbox"/>BLACK BERRY</label></li>
                    <li>
                        <label>
                            <input type="checkbox" name="checkbox"/>ADDIDAS</label></li>
                    <li>
                        <label>
                            <input type="checkbox" name="checkbox"/>PUMA</label></li>
                </ul>