Who wrote this in your custom css?
.carousel .item {
line-height: 350px;
overflow: hidden;
margin-left: auto;
margin-right: auto;
min-height: 350px;
}
Let’s try deleting those
line-height: 350px
and
min-height: 350px
this way you’ll use default values.
In customizr orange.css (which you are using) for “screen” width < 767px those values are 308px:
@media (max-width: 767px){
.carousel .item {
line-height: 308px;
overflow: hidden;
min-height: 308px;
}
}
and for 190px for screen width < 480px, are 190px.
@media (max-width: 480px){
.carousel .item {
line-height: 190px;
overflow: hidden;
min-height: 190px;
}
}
With the code you have in your custom css you force those values to be always 350px, you’re breaking slider responsiveness!
Wanna change those default values? Wanna make it more responsive? Make your own rules overriding default for specific screen widths.
But in order to achieve that, again, you have to understand media queries, it’s not that hard.