Hi David,
You would need to add custom CSS to the “Custom CSS” box on the Edit Catalogue page.
Here’s some code you can try using as a starting point:
.prod-cat-inner {
position:relative;
width:100%;}
.prod-cat-sidebar {
clear:both;
width:100%;
max-height:auto;
max-width: none;
z-index: 99999;
right:0;}
.prod-cat-sidebar > form > div {
margin: 5px 15px;}
.prod-cat-sidebar-category-content div, .prod-cat-sidebar-subcategory-content div, .prod-cat-sidebar-content-tag div, .prod-cat-cf-sidebar-option div {
max-width: 100%;}
.prod-cat-sidebar-category-title,
.prod-cat-sidebar-subcategory-title,
.prod-cat-tag-sidebar-title, .prod-cat-cf-sidebar-title {
padding: 5px;}
.prod-cat-sidebar-cat-title{
clear:both;
width:100%;}
.prod-cat-sidebar-content{
width:100%;}
.prod-cat-sidebar-content div{
padding: 5px;
display: inline-block;
}
.prod-cat-sidebar-content div.ui-slider {
display: block;
}
.prod-cat-cf-sidebar-title {
}
.prod-cat-sidebar-cf{
width:100%;
}
.prod-cat-cf-sidebar-option div{
float:left;
margin:5px 5px 0;
}
.prod-cat-sidebar-category,
.prod-cat-sidebar-subcategory,
.prod-cat-sidebar-tag,
.prod-cat-sidebar-cf-value-div{
padding: 0 4px;
}
.prod-cat-sort-by,
.prod-cat-text-search{
margin-left:5px;
}.
.styled-input {
width: 85%;
min-width:140px;
}
.styled-select select {
width:auto;
}
.styled-input input[type="text"] {
width:90%;
}
.displaying-num {
display: inline-block;
}
.prod-cat-sidebar .styled-input {
width: 100%;
}
.upcp-filtering-clear-all {
width: calc(100% - 22px);
}
.prod-cat-sidebar-content .subcat-collapsible {
width:100%;
padding: 0;
}
.prod-cat-sidebar-content .prod-sidebar-checkbox-block {
display: block;
width: 100%;
}
.prod-cat-subcat-collapsible .prod-cat-sidebar-category,
.prod-cat-subcat-collapsible .prod-cat-sidebar-subcategory{
display: block;
width: 100%;
}