@keyframes left-side-btn{
    20%{left: -90px;}
    40%{left: -85px;}
    60%{left: -80px;}
    80%{left: -75px;}
  }
  @keyframes right-side-btn{
    20%{right: -90px;}
    40%{right: -85px;}
    60%{right: -80px;}
    80%{right: -75px;}
  }
  @-webkit-keyframes right-side-btn{
    20%{left: -90px;}
    40%{left: -85px;}
    60%{left: -80px;}
    80%{left: -75px;}
  }
  @-webkit-keyframes right-side-btn{
    20%{right: -90px;}
    40%{right: -85px;}
    60%{right: -80px;}
    80%{right: -75px;}
  }
  
  .side-btn{
    font-family: sans-serif;
    position: fixed;
    width: 220px;
    height: 80px;
    top: 45%;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
    background: rgb(111, 148, 62);
    text-align: center;
    transition: 0.8s ease;
    animation-name: side-btn;
    /* animation-duration: 10.5s;
    animation-iteration-count: infinite;
    -webkit-animation-duration: 10.5s;
    -webkit-animation-iteration-count: infinite; */
    z-index: 100;
  }
  
  .side-btn a{
    display: block;
    width: 100%;
    height: 100%;
    line-height: 70px;
    font-size: 18px;
    color: #fff;
    text-decoration: none;
    border-top-left-radius: 10px;
    border-top-right-radius: 10px;
  }
  
  .left-side-btn{
    left: -90px;
    -ms-transform: rotate(90deg);
    -moz-transform: rotate(90deg);
    -webkit-transform: rotate(90deg);
    -o-transform: rotate(90deg);
    -webkit-animation-name: left-side-btn;
  }
  
  .right-side-btn{
    right: -90px;
    width: 220px;
    height: 80px;
    -ms-transform: rotate(270deg);
    -moz-transform: rotate(270deg);
    -webkit-transform: rotate(270deg);
    -o-transform: rotate(270deg);
    -webkit-animation-name: right-side-btn;
  }
  
  .side-btn:hover{
    transition: 0.9s ease;
    right: -75px;
    top: 45%;
    width: 240px;
    height: 100px;
    -ms-animation-play-state: paused;
    -moz-animation-play-state: paused;
    -webkit-animation-play-state: paused;
    -o-animation-play-state: paused;
  }
  
  .bigtext a:hover{
    transition: 0.9s ease;
    right: -75px;
    color: white;
    line-height: 90px;
    text-transform: uppercase;
    font-size: 28px;
    font-weight: bold;
  }
  
  @media only screen and (max-width: 600px) {
  
  .side-btn{
    font-family: sans-serif;
    position: fixed;
    width: 120px;
    height: 40px;
    /* top: 45%; */
    border-top-left-radius: 5px;
    border-top-right-radius: 5px;
    background: rgb(111, 148, 62);
    text-align: center;
    transition: 0.8s ease;
    animation-name: side-btn;
    /* animation-duration: 10.5s;
    animation-iteration-count: infinite;
    -webkit-animation-duration: 10.5s;
    -webkit-animation-iteration-count: infinite; */
    z-index: 100;
  }
    .side-btn a{
    display: block;
    width: 100%;
    height: 100%;
    line-height: 40px;
    font-size: 16px;
    color: #fff;
    text-decoration: none;
    border-top-left-radius: 0px;
    border-top-right-radius: 0px;
  }
  
  .left-side-btn{
    left: -90px;
    -ms-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -webkit-animation-name: left-side-btn;
  }
  
  .right-side-btn{
    top : 93%;
    right: 0px;
    width: 110px;
    height: 40px;
    -ms-transform: rotate(0deg);
    -moz-transform: rotate(0deg);
    -webkit-transform: rotate(0deg);
    -o-transform: rotate(0deg);
    -webkit-animation-name: right-side-btn;
  }
  
  .side-btn:hover{
    transition: 0.9s ease;
    right: 0px;
    top: 93%;
    width: 120px;
    height: 50px;
    -ms-animation-play-state: paused;
    -moz-animation-play-state: paused;
    -webkit-animation-play-state: paused;
    -o-animation-play-state: paused;
  }
  
  .bigtext a:hover{
    transition: 0.9s ease;
    right: -75px;
    color: white;
    line-height: 90px;
    text-transform: uppercase;
    font-size: 28px;
    font-weight: bold;
  }
  
}