* {

    margin: 0;
    padding: 0;
    font-family: arial;
    box-sizing: border-box;
  
  }
  
  body {
    background-color: rgb(251, 251, 251);
  }
  
  .headline_container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding-top: 5%;
    z-index: 100;
  }
  
  h1 {
    text-align: center;
    text-shadow: 2px 2px #190606;
    display: block;
    font-size: 2em;
    /*margin-top: 0.67em;
    margin-left: 24%;
    margin-right: 0;*/
    margin: auto;
    font-weight: bold;
    color: rgb(248, 248, 250);
    font-size: 50px;
    background-color: rgb(130, 27, 142);
    display: inline-flex;
    font-family: "sans-serif";
    padding: 2px 0px;
    border-radius: 15px;
    box-shadow: 0px 10px 10px black;
  
  }
  
  .myVideo {
    display: block;
    position: absolute;
    z-index: -1;
    top: 0;
    left: -150;
    height: 122vh;
    width: 122vw;
  }
  
  .red img {
    width: 95px;
    float: left;
    padding-left: 2%;
    padding-top: 1%;
    filter: invert(1);
    position: absolute;
  }
  
  .nav_bar {
    padding: 5px 1px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 50px;
  }
  
  .nav_bar img {
    width: 95px;
    float: left;
    padding-left: 2%;
    padding-top: 3%;
    filter: invert(1);
  }
  
  .login__btn {
    padding: 5px 15px;
    font-size: 20px;
    color: black;
    font-weight: bold;
    border-radius: 15px;
    background-color: rgba(88, 88, 88, 0.7);
    margin-right: 15px;
    text-transform: uppercase;
  }
  
  .register__btn {
    padding: 5px 15px;
    font-size: 20px;
    color: black;
    font-weight: bold;
    border-radius: 15px;
    background-color: rgba(88, 88, 88, 0.7);
    text-transform: uppercase;
  }
  
  .login__btn:hover {
    padding: 5px 15px;
    font-size: 20px;
    background-color: rgba(45, 45, 45, 0.2);
  }
  
  .register__btn:hover {
    padding: 5px 15px;
    font-size: 20px;
    background-color: rgba(45, 45, 45, 0.2);
  }
  
  .main__content {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 95vh;
  }
  
  .btn1 {
    padding: 40px;
    font-size: 45px;
    background-color: rgb(130, 27, 142);
    background-image: url("./pictures/fruit.jpg");
    color: rgb(62, 2, 69);
    text-shadow:2px 2px #fffefe;
    border: 10cm;
    border-color: #0a0a0a;
    border-radius: 50px;
    box-shadow: 0px 5px 10px black;
    text-transform: uppercase;
    cursor: pointer;
    ;
  }
  
  .btn1:hover {
    background-color: rgb(41, 38, 41);
    transform: scale(1.1);
  }
  .btn2 {
    padding: 40px;
    font-size: 45px;
    background-color: rgb(130, 27, 142);
    background-image: url("./pictures/flower.jpg");
    color: rgb(62, 2, 69);
    text-shadow:2px 2px #fffefe;
    border: 10cm;
    border-color: #0a0a0a;
    border-radius: 50px;
    box-shadow: 0px 5px 10px black;
    text-transform: uppercase;
    cursor: pointer;
    ;
  }
  
  .btn2:hover {
    background-color: rgb(41, 38, 41);
    transform: scale(1.1);
  }
  .btn3 {
    padding: 40px;
    font-size: 45px;
    background-color: rgb(130, 27, 142);
    background-image: url("./pictures/animal.jpg");
    color: rgb(62, 2, 69);
    text-shadow:2px 2px #fffefe;
    border: 10cm;
    border-color: #0a0a0a;
    border-radius: 50px;
    box-shadow: 0px 5px 10px black;
    text-transform: uppercase;
    cursor: pointer;
    ;
  }
  
  .btn3:hover {
    background-color: rgb(41, 38, 41);
    transform: scale(1.1);
  }
  .btn4 {
    padding: 40px;
    font-size: 45px;
    background-color: rgb(130, 27, 142);
    background-image: url("./pictures/bird.jpg");
    color: rgb(62, 2, 69);
    text-shadow:2px 2px #fffefe;
    border: 10cm;
    border-color: #0a0a0a;
    border-radius: 50px;
    box-shadow: 0px 5px 10px black;
    text-transform: uppercase;
    cursor: pointer;
    ;
  }
  
  .btn4:hover {
    background-color: rgb(41, 38, 41);
    transform: scale(1.1);
  }
  
  .btn__container {
    width: 1000px;
    display: flex;
    justify-content: space-around;
  }
  .myquiz {
    width: 100%;
    height: 100vh;
    background-image: url("./pictures/quiz-time.gif");
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
  
  }
  
  /*learning page*/
  .btn__container_learningh {
    display: grid;
    grid-template-columns: 1fr 1fr;
    row-gap: 40px;
    margin-top: 100px;
    justify-items: center;
    align-items: center;
  }
  
  /* number */
  .mynumber {
    width: 100%;
    height: 100vh;
    background-image: url("./pictures/number.gif");
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
  
  }
  
  .number__content {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 95vh;
  }
  
  .number__container {
    width: 1000px;
    display: flex;
    justify-content: space-around;
  }
  
  /* learn */
  
  /*video*/
  .video-container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
  }
  
  .video-c {
    width: 100%;
  }
  
  .c-video {
    width: 100%;
    max-width: 800px;
  }
  
  /* color */
  .mycolor {
    width: 100%;
    height: 100vh;
    background-image: url("./pictures/color.gif");
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
  
  }
  
  /* alphabet */
  .myalphabet {
    width: 100%;
    height: 100vh;
    background-image: url("./pictures/alphabet.gif");
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
  
  }
  
  /*identification */
  .myidentify {
    width: 100%;
    height: 100vh;
    background-image: url("./pictures/identify.gif");
    background-size: cover;
    background-position: center;
    position: absolute;
    overflow: hidden;
    z-index: -10;
  
  }
  
  /* game */
  .mygame {
    width: 100%;
    height: 100vh;
    background-image: url("./pictures/game.gif");
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
  
  }
  
  /*identification */
  .mypuzzle {
    width: 100%;
    height: 100vh;
    background-image: url("./pictures/puzzle.gif");
    background-size: cover;
    background-position: center;
    position: relative;
    overflow: hidden;
  
  }
  
  /* Audion Button  */
  .audio_button {
    padding: 20px;
    font-size: 25px;
    background-color: rgb(11, 102, 247);
    color: white;
    border: 0cm;
    border-radius: 5px;
    box-shadow: 0px 5px 10px black;
    text-transform: uppercase;
    margin-left: 10%;
  }