#div{...}     -> ID

.div  {...}  -> 클래스

ID : 한번만 오는 오브젝트에 적용

ex) <table border="0" cellspacing="1" cellpadding="0" id="detail" bgcolor="#dddddd">

CLASS : 여러번 오는 오브젝트에 적용

    <application> 

        <name>test</name>

        <path>/home/jeus6/webhome/test</path>

        <deployment-type>COMPONENT</deployment-type>

        <web-component>

            <context-root>/</context-root>

        </web-component>

        <deployment-target>

            <target>

                <engine-container-name>node_container1</engine-container-name>

                <web-context-group>

                    <name>MyGroup</name>

                </web-context-group>

            </target>

            <target>

                <engine-container-name>node_container2</engine-container-name>

                <web-context-group>

                    <name>MyGroup</name>

                </web-context-group>

            </target>

        </deployment-target>

    </application>

JEUSMain.xml에 위와 같이 Application안에 두개의 Container를 target으로 지정한다.