.view_margin {
  margin-top: 57px;
}

.hackathon_top {
  background-image: url('/2021/assets/img/hackathon/bg.jpg');
  background-repeat: no-repeat;
  background-size: cover;
  color: #eee;
  background-position: center;
}

.midashi {
  margin: 60px auto;
  letter-spacing: 5px;
  font-size: 4rem;
  font-weight: bold;
}

.theme {
  position: relative;
  margin: 100px auto 60px;
  font-size: 3rem;
  font-weight: normal;
}

.theme::before {
  position: absolute;
  top: -20px;
  content: "THEME";
  font-size: 1rem;
  font-weight: normal;
}

.teams {
  display: flex;
  flex-wrap: wrap;
  margin: 30px auto;
  max-width: 900px;
}

.team {
  width: 50%;
  margin: 20px 0;
  text-align: left;
  padding: 20px;
}

.team_name {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid #4a4a4a;
}

.members p {
  margin: 0.5rem;
}

.members p .twitter_link {
  color: #1f1f1f;
  text-decoration-color: #00acee;
}

.members p .twitter_link::before {
  display: inline-block;
  font-style: normal;
  font-variant: normal;
  text-rendering: auto;
  -webkit-font-smoothing: antialiased;
  font-family: "Font Awesome 5 Brands";
  font-weight: 400;
  content: "\f099";
  color: #00acee;
}

.members .others {
  text-align: right;
}

@media screen and (max-width: 900px) {
  .section_content .midashi {
    font-size: 3rem;
  }

  .theme {
    font-size: 2rem;
  }
}

/* 600px以下 スマホ用 */
@media screen and (max-width: 600px) {
  .section_content .midashi {
    font-size: 1.5rem;
  }

  .theme {
    font-size: 1.2rem;
  }

  .theme::before {
    font-size: 0.7rem;
  }

  .team {
    width: 90%;
    margin: 20px auto;
  }
}