RE: Responsive Email on mobile
Thank you for your feedback.
The Microsoft support found the same solution.
You should not use the blank model but you have to pass the model template.
Otherwise you should change the HTML code with :
@media only screen and (max-width: 768px) {
.columnContainer {
width: 100% !important;
padding: 10px 0px !important;
min-height: 70px !important;
box-sizing: border-box;
margin-left: 0px !important;
margin-right: 0px !important;
}
.containerWrapper {
display: block !important;
}