changing background of toggler

Hi guys,

so i use this code to change background of all toggler
.main_color .toggler{
background:#ed5288!important;
color:white!important;
}

and it is doing great job, but i want to change background of only one toggler to blue. I tried to give it custom css
and insert that class in “Custom Css Class” field but nothing happen.
.main_color .toggler .blue{
background:#0099d8!important;
color:white!important;
}

can you please provide me some solution to change that one toggler

i’ll provide you with login and url so you can enter and change if something needs to be changed

thanks