Hello, i use Helix Ultimate with individuell header. On the Desktop i show only the menu, that are correct in frontend. In the mobile version i will show menu / logo / text. I had set grid for Phone/Large Phone for menu 4 / logo 4 / text 4.

In the custom css are use this code:

div#sp-menu {
    width: 100%;
    margin: 0 auto;
    text-align: center;
}
.sp-megamenu-parent {
    list-style: none;
    padding: 0;
    margin: 0 -15px;
    z-index: 99;
    display: block;
    float: none;
    position: relative;
}

On the Phone i see a chop up header, what is my mistake? Best regards Ralf