HOSN-app/app/src/components/profile-header/profile-header.scss

profile-header {
  .profile-banner {
    width: 100%;
    height: calc(100vw * 0.333333333);
    background-size: cover;
    position: relative;
    .svg-triangle {
      position: absolute;
      bottom: -1px;
    }
  }
  .avatar {
    border-radius: 50%;
    box-shadow: 0px 0px 4px 0px #777;
    position: absolute;
    bottom: -10px;
    left: 15px;
  }
}