body {
    font-family: Avenir, Helvetica, Arial, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    color: #2c3e50;
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
}

html,
body,
#app {
    padding: 0px;
    margin: 0px;
    height: 100%;
}