Not displaying correctly on iPhone

This is because you increased the size of the text logo in the last support thread of yours.

Paste the following in custom.css at the very end after the previous code from the last thread. It should fix it.

@media screen and (max-width: 620px) {

hgroup a {
    font-size: 28px;
}

hgroup .site-description {
    font-size: 14px;
}
}

Also try by decreasing the px values as it fits your need.

I see that you are now using big logo instead of text based logo.

For this use this code:

.themonic-logo img {
    max-width: 100%;
}