* {
  margin: 0;
  box-sizing: border-box;
}

header {
  width: 100%;
}

body {
  background: #fbfbfc;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: 'Source Sans Pro', sans-serif;
  color: #2e2e2e;
  padding: 20px 40px;
}

main {
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.body {
  max-width: 100%;
  width: 550px;
}

.intro {
  margin: 20px 0px;
}

.row {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
}

.d-flex {
  display: flex;
}

.justify-content-center {
  justify-content: center;
}

img {
  width: 20px;
  height: 20px;
  margin-right: 5px;
}

.col-sm-4 {
  flex: 0 0 33.333333%;
  max-width: 33.333333%;
}

.col-sm-2 {
  flex: 0 0 50%;
  max-width: 50%;
}

.col {
  padding: 10px;
}

@media (max-width: 576px) {
  .col {
    flex: 0 0 100%;
    max-width: 100%;
  }
}