Header image always too small in mobile mode

Hi,

I just checked your site and looks like the issue is caused by your custom CSS code. Please remove this custom CSS code below:

.header-text {
    font-size: 50px !important;
    text-shadow: 3px 1px #595959 !important;
}

And remove this also:

.atblock .widget-title,
h3 {
	font-size: 20px !important;
}

Then add this:

.header-text {
    text-shadow: 3px 1px #595959;
}
@media only screen and (max-width: 375px){
	h3.header-text{
		font-size: 50px;
	}
}

@media only screen and (max-width: 320px){
	h3.header-text{
		font-size: 20px;
	}
}