#app {

}

#app > div {
    display: flex;
    justify-content: center;
    align-items: center;
}

.event {
    text-align: center;
    margin: 30px;
}

.event > div:nth-child(2) {
    width: 150px;
    height: 50px;
    padding: 10px;
    font-size: 1.5em;
    border: 1px solid;
    display: flex;
    justify-content: center;
    align-items: center;
}