.custom_block_btn,
.acf-block-preview .custom_block_btn{
    color : #ad968e !important;
    background-color : #000000;
    border: 10px solid #000000;
    border-radius : 2px;
}
.custom_block_btn:hover{
    color : #000000 !important;
    background-color : #ad968e;
    border-color: #ad968e;
}

@media only screen and (max-width: 500px){

}