.container {
    margin-top: 100px;
    width: 360px;
}

.result-screen {
    width: 100%;
    height: 50px;
    background: white;
    border: 1px solid rgba(70, 70, 70, 0.3);
    text-align: right;
    font-size: 24px;
    padding: 5px;
}

.btn {
    width: 100%;
    height: 50px;
}

.btn:hover {
    background: #d9edf7;
}

.col-xs-3 {
    padding: 5px;
}

.row {
    margin-left: 0;
    margin-right: 0;
}

#history-screen {
    text-align: right;
}