I have a backup of the CSS just in case, but I did modify it, right at the top in a obvious block.

Please see https://www.teamanics.com/?section=74

 

I have the style cbtest

targeting the first and last cols of a container.

The targeting for the first col is done poorly, and ANY first col in any embedded content is targeted.

The targeting for the last col affects ONLY the last col immediately included and not any embedded ones.

 

/* == =======================================
    == Show how to use a style to target specific columns of a container block - lslater
   === ======================================
  A typical container block for style cbTest  is:
    <div id="cont_1058" class="container_box cbTest_container_box">
    <div class="row cb_r row cb_r_sm cb_r_first cb_r_last">
        <div class="col-md-3 cb_c cb_c_first cb_c_notlast" >
        <div class="col-md-9 cb_c cb_c_last" >

    So the class order is div.cbTest_container_box   div.cb_r   div.c_bc
*/

{declare_style style=cbTest name='cbTest' cat='Special' rev=1 order=975 desc=''}
div.cbTest_container_box [
    background-color: Orchid;
        border: 4px solid red;
]

/* This targets the first col.    But it also targets ANY first col in an embedded block
    You will see that blue border and goldenrod where it does not belong
 */
div.cbTest_container_box    div.cb_r   div.cb_c_first [
     border: 10px solid blue;
     background-color: goldenrod;
]

/* This targets ONLY the last col that is DIRECTLY held by the container with cbTest
    You will see the green border ONLY on the outermost

    IMPORTANT: In the top blocks in the cols set Ignore Parent Styles
*/
div.cbTest_container_box > div.cb_r > div.cb_c_last [
     border: 10px solid green;
     background-color: PowderBlue ;
]