Adding if statement

I have format your code and break echo statement into parts and add if condition. you can take reference from below code.

 <?php if ( is_user_logged_in() ) { 
         echo '<ul style="padding: 0; margin: 0;">
            <li class="adminBar" style="float: left; line-height: 60px; border-left: 1px solid #555555; border-right: 1px solid #555555;"><a href="#" target="_blank"><img src="#" height="40px" style="padding-left: 15px; padding-right: 15px;"></a></li>
            <li class="adminBar" style="float: left; line-height: 60px; border-right: 1px solid #555555;"><a href="#" target="_blank"><img src="#" height="40px" style="padding-left: 15px; padding-right: 15px;"></a></li>
            <li class="adminBar" style="float: left; line-height: 60px; border-right: 1px solid #555555;"><a href="#" target="_blank"><img src="#" height="40px" style="padding-left: 15px; padding-right: 15px;"></a></li>
            <li class="adminBar" style="float: left; line-height: 60px; border-right: 1px solid #555555;"><a href="#" target="_blank"><img src="#" height="40px" style="padding-left: 15px; padding-right: 15px;"></a></li>
            <li class="adminBar" style="float: left; line-height: 60px; border-right: 1px solid #555555;"><a href="#" target="_blank"><img src="#" height="40px" style="padding-left: 15px; padding-right: 15px;"></a></li>' ; 

            if( current_user_can('editor') || current_user_can('administrator') ) {  
                ?>
                # add you content here
                <?php 
            } 

           echo  '<li id="logoutDrop" class="loginBtn" style="background-color: #27618d; float: right;"><a style="text-decoration: none; text-transform: none; line-height: 60px; color: #fff; padding: 15px 20px 15px 20px;" href=""' . wp_logout_url() . '">Logout</a>' . '
            <li id="logoutDrop" style="border-right: 1px solid #555; padding: 0 15px 0 15px; float: right;"><a style="text-transform: none; text-decoration: none; line-height: 60px; color: #fff;">Hi, '.$current_user->user_login. '</a>
              <ul style="display: none;">
                <li><a href="#" style="">Logout</a></li>
              </ul>
            </li>' .
          '</ul>';
      }      
      else  
      { 
        echo '<div id="stmposTitle">
        <a href="https://wordpress.stackexchange.com/" style="text-decoration: none; float: left; text-transform: none; line-height: 35px; color: #fff;">
        <img src="#" style="margin-top: 2px; float:left; padding-right: 10px;">Name</a></div>
        <a class="loginBtn" style="float: right; line-height: 35px; color: #fff; background-color: #27618d; padding: 0 15px; 0 15px; text-decoration: none;" href="' . wp_login_url() . '">Login</a>' ;
      } 
  ?>