How to apply style to the body tag of a particular page?

from your verbal desription, i would think this should work:

<?php  if ( is_single() OR is_page('171') ) : ?>
<body class="last-page"> 
<?php else: ?>     
<body>
<?php endif; ?>

Related Posts:

  1. What is the condition to check if we are in admin or frontend?
  2. if (is_page(**PAGE ID**)) not working
  3. is_home , is_front_page not working
  4. What is the correct method for determining ‘is_front_page’ when using filters such as ‘pre_get_posts’ and ‘posts_where’?
  5. how to check if front page is set to show a static page
  6. Way to check if we are in Theme Customizer mode? [duplicate]
  7. How can we use conditional tags in plugins?
  8. Possible to use conditionals within add_feed() callback?
  9. is_home() vs is_archive()
  10. Blog Posts vs Static Page (conditional statements)
  11. Adding Controls to Theme Customizer If Certain Page Template is Active
  12. Problem with “conditional tag”: if empty
  13. Do I need to include ‘else’ and/or ‘endif’?
  14. is_singular() equivalent for backend
  15. Make specific tag visible only to logged in users in front-end
  16. How can i know when i can execute what functions of wordpress?
  17. Issue getting gettext to work with conditional statements
  18. Post tags show outside loop?
  19. Need help with else if statement
  20. WordPress conditionals not working
  21. Cannot Use is_single() and is_admin in functions.php
  22. Hide a template part when page is password protected?
  23. Limit Contact Form 7 hook to specific form [closed]
  24. Checking whether template part is loaded in a page
  25. Conditional tags inside a class
  26. Use slug rather than id for $post->post_parent?
  27. If (category / tag checked) then (display header2php)
  28. If Parent or Current Page Is, Then Statement?
  29. Trouble with parent and child conditional tag to show content
  30. A simple method for disabling WPML language switcher when meeting specific circumstances [closed]
  31. Display a div only in some author’s single posts
  32. What do I add to this code to include additional CPTs?
  33. Loading template parts conditionally in Customizer
  34. Conditional check for embedded video in the_content
  35. Conditional IF statement not returning true even though echo of $user->province is correct
  36. is singular and is home not working
  37. add styles if custom header was included
  38. Check if user registered more than a month ago
  39. PHP if statement printing the if parameters
  40. If page displays posts conditional
  41. Conditional tags not working
  42. How to check with is_page if 404.php is loaded?
  43. Sub-category single post styling?
  44. I need use is_single in functions.php
  45. How to apply a function if conditon a & b [closed]
  46. do code if current url = value
  47. Why might conditionals not work on a page?
  48. Conditional display faults
  49. Conditionals: What is wrong with my if/else statements? [closed]
  50. Only on single post page
  51. Is there any way to assign stylesheets to whole sets of pages using is_page( )
  52. is_home() returns true while it shouldn’t
  53. Conditional tags help (if none, don’t display anything)
  54. How to display a feature only if custom field value is set?
  55. Filter for the Custom Post List Page
  56. Additional conditions tags to work
  57. Gravity Forms, multiple conditions in shortcode
  58. Conditonal tag or work around to identify page number of pagnation
  59. Conditional: current user updated post in the last X days
  60. How can I get $pagenow equals to the Home Page or specific page on my site?
  61. page single conditional
  62. Three variables on conditional tags
  63. Is it possible to If statement “article already appears on page”?
  64. Which is the right order of the conditional tags on pages?
  65. Hide breadcrumbs on specific pages
  66. Pre Get Posts – Difference between conditional() and $query->conditional()?
  67. Cannot retrieve active members only
  68. Conditional Custom Image Header
  69. Trying to place shortcode/css/html into an IF conditional statement
  70. Conditional Tag Based on Age of Post [duplicate]
  71. Will multiple conditionals slow down page load?
  72. conditional statement for profile pages
  73. Conditional single.php statement not recognizing conditionals
  74. Conditional tag-like function to tell if post is in trash?
  75. Getting false for is_home() on Posts page
  76. Automatically insert H2 on h2 tags on WordPress post
  77. Content visibility condition based on date
  78. Why is_page() returns false when visiting the static page declared as “posts page”
  79. if is NOT custom post type OR is NOT page combination [closed]
  80. What changes are needed for this conditional code to work on deeper levels?
  81. How to detect if bbPress forum index
  82. Conditional tags returning different results for different areas on a page?
  83. Displaying message if no posts in tag
  84. WordPress Conditionals Giving Me A Headache
  85. PHP inside echo HTML?
  86. Conditional statements in wordpress themes
  87. My Conditional Tags not Working
  88. Hide page header on both index and author pages [closed]
  89. How to check if the current page’s parent is one of 2 different ID’s
  90. Showing code only on Front Page “Posts Page”
  91. Targeting all pages except top level pages
  92. Display Latest Post on a Page Conditionally
  93. is_archive for custom tax archive page?
  94. Help with adding conditional title tags to header.php
  95. Custom Headers on Blog Posts Page
  96. Conditional statement with three condition
  97. if is_page(‘slug’)
  98. How do I combine these two conditionals? [closed]
  99. problem with not displaying content on selected pages
  100. hide block of code from showing on certain pages
Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)