3 columns show

Hi

I love this plugin, I have 1 issue, i use this code to show the reviews
[site_reviews pagination=ajax count=10]

but How can make reviews shows in 3 columns, I used the below css but not working
https://prnt.sc/12ejni3

.glsr-review {
    margin-bottom: 10px!important;
    display: inline-block;
    padding: 30px 30px 30px 30px;
    vertical-align: text-top;
    background-color: #F9F9F9;
    width: 33%;
}

@media only screen and (max-width: 768px) {
.glsr-review {
    margin-bottom: 10px!important;
    width: 49%;
}
}
@media only screen and (max-width: 360px) {
.glsr-review {
    margin-bottom: 10px!important;
    width: 99%;
}
}
[site_reviews count=6 pagination=ajax]