I would like to change the border width of my menú on mobile versión to a 2px border, I have added this code in my custom CSS but it doesn't work.
How could I do it?
@media (max-width: 900px)
.navbar {
display: block;
top: 0;
left: 0;
bottom: auto;
right: auto;
width: 100%;
position: fixed;
min-height: 39px;
z-index: 30;
border-bottom-style: solid;
border-bottom-width: 2px;
}