you are using visual composer , so you can add page specific css to that page, please copy given code into your page css and it will work, if you find it difficult message me and i show you screenshot, it will work on this page only
Relevant Skills and Experience
.projects[data-columns="2"] .projects-items .hentry {
width: 33%;
}
@media (min-width: 768px){
.vc_col-sm-8 {
width: 100%;
}
}
Proposed Milestones
$25 USD - web