gtk-notebook.css

/* Notebook and tabs */

notebook {
   padding: 0; }

/* Did not move notebook frame references to frame css file because
   the references are tied so closely to the settings below: */

/* Adjust tab positions */

notebook.frame {
   margin-top: 2px;
   border-color: @borders; }

notebook.frame > header {
   margin: -1px; }

notebook.frame > header.top {
   border:none;
   margin-left: 0px;
   margin-right: 1px;
   margin-bottom: 0px; }

notebook.frame > header.bottom {
   margin-left: 0px;
   margin-right: 1px;
   margin-top: 0px; }

notebook.frame > header.left {
   margin-top: 1px;
   margin-right: 0px; }
      
notebook.frame > header.right {
   margin-top: 0px;
   margin-left: 0px; }

notebook.frame > header.top, notebook.frame > header.bottom {
   padding-left: 0;
   padding-right: 0; }
      
notebook.frame > header.left, notebook.frame > header.right {
   padding-top: 0;
   padding-bottom: 0; }

notebook > stack:not(:only-child) {
   margin: 0px;
   border: 1px solid @borders;
   border-top: 1px solid @light_shadow;
   border-left: 1px solid @light_shadow;
   padding: 2px;
   background-color: @notebook_bg_color;
   box-shadow: inset -1px -1px @dark_shadow ;  }


/* Tab colors and border images */


notebook tab {
   border-style: solid;
   border-radius: 0;
   border-color: transparent;
   color: @theme_fg_color;
   background-color: @notebook_bg_color;
   outline-width: 0; }
    
notebook tab:checked {
   color: @theme_fg_color;
   border-color: @borders;
   background-color: @notebook_bg_color; }
  
notebook > header {
   background-color: @theme_bg_color; }

/* Top tabs */

notebook > header.top > tabs > tab {
   border-width: 5px 5px 2px 5px;
   border-image: url("assets/tab_top_checked.png");
   border-image-slice: 5 5 2 5; }
        
notebook > header.top > tabs > tab:checked {
   margin-bottom: -1px;
   border-image: url("assets/tab_top.png");
   border-image-slice: 5 5 2 5; }

/* Bottom tabs */

notebook > header.bottom > tabs > tab {
   border-width: 2px 5px 5px 5px;
   border-image: url("assets/tab_bottom_checked.png");
   border-image-slice: 2 5 5 5; }
        
notebook > header.bottom > tabs > tab:checked {
   margin-top: -2px;
   border-image: url("assets/tab_bottom.png");
   border-image-slice: 2 5 5 5; }

/* Right side tabs */

notebook > header.right > tabs > tab {
   border-width: 4px 8px 6px 0px;
   border-image: url("assets/tab_right_checked.png");
   border-image-slice: 4 8 6 0; }

notebook > header.right > tabs > tab:checked {
   margin-left: -2px;
   border-image: url("assets/tab_right.png");
   border-image-slice: 4 8 6 0; }

/* Left side tabs */

notebook > header.left > tabs > tab {
   border-width: 4px 0 6px 8px;
   border-image: url("assets/tab_left_checked.png");
   border-image-slice: 4 0 6 8; }
        
notebook > header.left > tabs > tab:checked {
   margin-right: -1px;
   border-image: url("assets/tab_left.png");
   border-image-slice: 4 0 6 8; }