.flex_wrap {
display: flex
}

.flex_1 {
flex: 1;
padding: 10px;
}

@media (max-width: 800px){
.flex_wrap {
flex-direction: column;
}
}

@media (min-width: 767px) {
.flex_1 ul {
    margin: auto;
    display: table;
}
}