Hope there will be more kinds of tips.
OK, Continue this question,How to set the background color and opacity in each column? Thanks.
<div class="elx5_2colwrap"> <div class="elx5_2colbox" style="background:#E6E6E6; opacity: 1;"> HTML of first column here (anything), from https://forum.elxis.org/index.php?topic=9141.0 <> <div class="elx5_2colbox" style="background:#E6E6E6; opacity: 0.9;"> HTML of second column here (anything) <><>
...Alternatively you can set width to 80% and add padding in columns like this:<div class="elx5_2colwrap"> <div class="my_2colboxa elx5_pad"> HTML of first column here (80%) </div> <div class="my_2colboxb elx5_pad"> HTML of second column here (20%) </div></div>Note 2: "elx5_pad" adds 5 pixel padding arround the element. "elx5_mpad" adds 10 pixel padding arround the element. Note 3: Flexbox is the new CSS3 cool way to create columns (among others). Before the best option we had was to use floated elements.