@media only screen {.preview-mode-theme-mismatch-warning {display: none !important;}
}

button.btn-close {
    top:24px!important;
    right:24px!important;
    width:2rem;
    height:2rem;
    background-size: 1.25rem;
}
button.btn-close:hover {
    background-color:transparent!important;
}