.uk-width-large {
    width: 300px;
}

/* Small devices (landscape phones, 544px and up) */
@media (min-width: 544px) {  
    .uk-width-large {
        width: 300px;
    }
}
   
/* Medium devices (tablets, 768px and up) The navbar toggle appears at this breakpoint */
@media (min-width: 768px) { 
}
   
/* Large devices (desktops, 992px and up) */
@media (min-width: 992px) { 
      
}
   
/* Extra large devices (large desktops, 1200px and up) */
@media (min-width: 1200px) {  
    .uk-width-large {
        width: 450px;
    }
}