.jumbotron {
  background-color: #343a40;
  color: #fff
}

select.form-control {
  height: auto!important
}

.custom-select {
  background: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 4 5'%3E%3Cpath fill='%23343a40' d='M2 0L0 2h4zm0 5L0 3h4z'/%3E%3C/svg%3E") no-repeat right .75rem center/8px 10px!important
}

.card {
  border-radius: 0!important
}

#score-graph {
  min-height: 400px;
  display: block;
  clear: both
}

#solves-graph {
  display: block;
  height: 350px
}

#categories-pie-graph,#keys-pie-graph {
  min-height: 400px;
  display: block
}

.form-control {
  position: relative;
  display: block;
  padding: .8em!important;
  border-radius: 0;
  background: #f0f0f0;
  color: #aaa;
  font-weight: 400;
  font-family: Avenir Next,Helvetica Neue,Helvetica,Arial,sans-serif;
  -webkit-appearance: none;
  height: auto!important
}

.challenge-desc {
  overflow-wrap: anywhere
}

.challenge-desc img {
  max-width: 100%
}