@media screen and (max-width: 410px){
    .action-bar button:nth-child(1){
        width: calc(50% - 0.25rem);
        float: left;
    }
    .action-bar button:nth-child(2){
        width: calc(50% - 0.25rem);
        float: right;
    }
    .action-bar button:nth-child(3){
        width: 100%;
        margin-top: 0.5rem;
    }
}

@media screen and (max-width: 390px){
    .action-bar button:nth-child(1){
        width: calc(50% - 0.25rem);
        float: left;
    }
    .action-bar button:nth-child(2){
        width: calc(50% - 0.25rem);
        float: right;
    }
    .action-bar button:nth-child(3){
        width: 100%;
        margin-top: 0.5rem;
    }
}

@media screen and (max-width: 320px){
    .action-bar button {
        padding: 0.4rem 0.2rem;
    }
}