app/assets/stylesheets/mobile/pages/_online_competition_group.scss
.online-competition-group {
background-color: white;
border: rgba(0, 0, 0, 0.14) solid 1px;
border-radius: 2px;
padding-left: 5px;
padding-right: 5px;
margin-top: 10px;
}
.online-competition-group__header {
color: rgba(0, 0, 0, 0.54);
font-weight: bold;
padding-left: 5px;
}