.main_row {
    display: flex;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 1px solid #ccc;
    justify-content: space-between;
    align-items: center;
}

.dropdown_selector {width: 75%;}

@media(max-width:767px){
	.main_row {
        display: block;
        padding-bottom: 0px;
}
.dropdown_selector {width: 100%; margin-bottom: 15px;}
}