.singular .type-post .comments-link a {
    background: #1616bf;
}

.posts-style-15 .comments-link a {
    background: #1616bf;
}

/*#page .vc_btn3.vc_btn3-style-custom {*/
/*    color: #fff !important;*/
/*    border-color: transparent !important;*/
/*    background-color: transparent !important;*/
/*    background-image: #1616bf !important;*/
/*}*/