style.css

@import url('https://fonts.googleapis.com/css?family=Exo+2:400|Roboto:300,700');
@import url('https://use.fontawesome.com/releases/v5.8.1/css/all.css');

@media (max-width: 960px) {
  /* For a screen < 960px, this CSS will be read */
  .container {
    width: 700px;
  }
}
@media (max-width: 720px) {
  /* For a screen < 720px, this CSS will be read */
  .container {
    width: 500px;
  }
}
@media (max-width: 540px) {
  /* For a screen < 540px, this CSS will be read */
  .container {
    width: 300px;
  }
}

/* Global */

body {
  background-color: rgba(81, 127, 99, .1);
  color: rgba(40, 83, 107, 1);
  font-family: 'Roboto', sans-serif;
  font-size: 16px;
  font-weight: 300;
  line-height: 32px;
}

h1, h2 {
  /* color */
  font-family: 'Exo 2', sans-serif;
  font-weight: 400;
}

h1 {
  color: rgba(3, 63, 99, 1);
  font-size: 32px;
}

h2 {
  color: rgba(81, 127, 99, 1);
  font-size: 24px;
}

.container {
  /* align divs */
  /*width: 700px;*/ /* overridden by media queries */
  margin: 0 auto;
}

.text-align {
  /* align div content */
  text-align: center;
}

a {
  color: rgba(81, 127, 99, 1);
}

a:hover {
  color: rgba(3, 63, 99, 1);
}

/* Components */

.card {
  /* container */
  background-color: white;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .1);
  border-radius: 4px;
  margin: 20px 30px;
  padding: 30px;
}

.img-circle, .div-circle {
  border-radius: 50%;
  background-size: cover;
  box-shadow: 0 10px 30px rgba(0, 0, 0, .1);
}

.img-circle {
  /*display: block;*/
  width: 150px;
  margin: 0 auto;
}

.div-circle {
  width: 150px;
  height: 150px;
  margin: 30px auto;
  background-image: url("./images/id.png");
}

.div-circle::after {
  content: "";
  display: block;
  position: relative;
  top: 65px;
  left: 51px;
  width: 50px;
  height: 50px;
  background-image: url("./images/must.png");
  background-size: 50px 50px;
}

.btn-green {
  color: white;
  background-color: rgba(3, 63, 99, 1);
  text-decoration: none;
  padding: 15px 20px;
  border-radius: 4px;
  border: 1px solid rgba(3, 63, 99, 1);
  font-weight: 700;
  line-height: 64px;
}

.btn-green:hover {
  color: rgba(3, 63, 99, 1);
  background-color: white;
  border: 1px solid rgba(3, 63, 99, 1);
}

.list-inline {
  padding-left: 0;
  list-style: none;
}

.list-inline > li {
  display: inline-block;
  padding: 0 20px;
}

.list-inline a {
  font-size: 64px;
}

/* Specific */