style.css

*{
  margin: 0;
  padding: 0,
}

html {
  scroll-behavior: smooth;
}

body{
    margin: auto;
    font-family: Cambria, Cochin, Georgia, Times, 'Times New Roman', serif;
    text-align: justify;
}

img{
    width: 100px;
}

#graphe_hf_sport{
    height: 400px;
    overflow:auto
}

#slider{
    margin-top: 1em;
    margin-bottom: 1em;
}

.noUi-connect {
	background: #4e79a7 !important;;
}

.cd-section h1{
  text-align: center;
  padding-top: 40vh;
  font-size: 3em;
  color: white;
}

.cd-section p{
  width: 80%;
  font-size: 1.5em;
  text-align: justify;
  padding-top: 2em;
  margin: auto;
}

.cd-section .citation{
  font-size: 0.5em;
  text-align: center;
}

.cd-section {
  padding: 4em;
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    min-height: 100vh;
    box-shadow: 1px 1px 12px #555; 
  }
  
  .cd-section--bg-fixed {
    min-height: 100vh;
    background-attachment: fixed;

  }
  
  /* backgrounds */
  .cd-section:nth-child(1) {
    background-image: url("img/running.jpg");
  }
  
  
  .cd-section:nth-child(3) {
    background-image: url("img/athletics.jpg");
  }
   
  .cd-section:nth-child(5) {
    background-image: url("img/football.jpg");
  }
   
  .cd-section:nth-child(7) {
    background-image: url("img/800px-Mondial_Ping_-_Mixed_Doubles_-_Final_-_32.jpg");
  }

  .cd-section:nth-child(9) {
    background-image: url("img/baseball.jpg");
  }

.cd-section:nth-child(11){
  background-image: url("img/flags.jpg");
}