I'm making a small web shop and i'm stuck. I want to create my main Index.html page but when i want to make 3 columns and I set their height to eg. 250px it's working but when i press f5 columns are changing their height to 20px. In incognito theyre 250px all the time - how? Second problem is that I can't set my height to eg. h-50 with bootstrap - it's not working even in incognito
<div class="container cont">
<div class="row row-no-gutters rov">
<div class="col-sm-4 h-50 bg-success">.col</div>
<div class="col-sm-4 kol bg-success">.col</div>
<div class="col-sm-4 kol bg-success">.col</div>
</div>
</div>
.cont{
height:500px;
}
.rov{
height:250px;
}
.kol{
height:250px;
}