floating problems

Hallo and congratuations for this very nice plugin….
Except one little problem that i have, plugin cause a floating problem like in the screenshot below:

Floating is going off, when i turn off the plugin and everything comes back as before.
But when i open the live configurator, floating comes again (i assume that something is compressing the structure of the page) and i am oblige to turn off again the plugin and things are keep going like this….

So finally i am in deep thoughts what i can do if this cannot be fixed, cause plugin is excellent.

Something else but not critical,
i try to change the backgroung color of search field from white to transparent but none
of the code change it successfully.

Right now i have this code in Ivory Search Settings in CSS field,

.main-navigation li.is-menu.popup {
    position: static !important;
    display: inline !important;
    background: transparent;
}

div#is-popup-wrapper {
    opacity: 0.6;
    background: transparent;
}

div#is-popup-wrapper input.search {
    width: 100%;
}

Please advise how can i solve this
Many thanks
Jim