Hi,
Thanks for the reply
Please take backup of your site before proceeding further.
Paste the below code in Additional CSS, please follow below steps
Appearance –> Customize –> Additional CSS –> Paste below code –> Publish
#slider .col-lg-6.col-md-6.col-6.slide-txt {
background: #d1e1f1;
}
You need to replace #d1e1f1 with either #CFCFCF or #6CBACC, so you will get that color.
Also we have sent mail regarding second query.
Many Thanks