footer.css

@import url('https://fonts.googleapis.com/css2?family=Arima:wght@600&family=Jua&family=Merienda:wght@700&display=swap');

body #wrapper {
  position: absolute;
  display: flex;
  min-height: 100vh;
  width: 100%;
  height: 600px;
  z-index: 20;
  top: 100px;
}

footer {
  clear:both;

  transform: translateY(-20%);
  bottom: 0;
  height: 250px;
  width: 100%;
  content:' ';
  background: linear-gradient(to bottom,#3586ff 10%,#3682f5 30%, #154792 80%, transparent);
  min-height: 100px;
  padding: 20px 50px;
  display: flex;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  margin: 0 auto;
}


footer .social_icon,
footer .menu {
  margin: 10px 10px;
}

/*
footer .social_icon,
footer .menu {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 10px 10px;
  flex-wrap: wrap;
}

footer .social_icon li,
footer .menu li  {
  list-style: none;
  color: #fff;
}

footer .social_icon li {
padding: 0;
left: -70%;
position: relative;
}

footer .social_icon li a {
  font-size: 2em;
  color: #fff;
  margin: 0 10px;
  display: inline-block;
  transition: 0.5s;
}

footer .social_icon li a:hover {
  transform: translateY(-10px);
}

footer .menu li a {
  font-size: 1.2em;
  color: #fff;
  margin: 0 10px;
  display: inline-block;
  text-decoration: none;
  opacity: 0.75;
}

footer .menu li a:hover {
  opacity: 1;
}
*/

footer p {
  color: #fff;
  text-align: center;
  margin-top: 15px;
  margin-bottom: 10px;
  font-size: 1.1em;

  z-index: 30;
}

footer .wave {
  position: absolute;
  top: -70px;
  left: 0;
  width: 100%;
  height: 100px;
  background: url(./images/wave.png);
  background-size: 1000px 100px;
}

footer .wave#wave1 {
  z-index: 1000;
  opacity: 1;
  bottom: 0;
  animation: animateWave 4s linear infinite;
}

footer .wave#wave2 {
  z-index: 999;
  opacity: 0.2;
  bottom: 10px;
  animation: animateWave_02 4s linear infinite;
}

footer .wave#wave3 {
  z-index: 1000;
  opacity: 0.8;
  bottom: 15px;
  animation: animateWave 3s linear infinite;
}

footer .wave#wave4 {
  z-index: 999;
  opacity: 0.7;
  bottom: 20px;
  animation: animateWave_02 3s linear infinite;
}

@keyframes animateWave {
  0%
  {
    background-position-x: 1000px;
  }
  100%
  {
    background-position-x: 0px;
  }
  
}

@keyframes animateWave_02 {
  0%
  {
    background-position-x: 0px;
  }
  100%
  {
    background-position-x: 1000px;
  }
}

@media screen and (max-width:1799px) {
  /*데스크탑*/

  footer {
    position: relative;
    top: 30px;
  }

  footer p {
    position: relative;
    bottom: -100px;
  }
}

@media screen and (max-width:1280px) {
  /*태블릿 가로*/

  footer {
    position: relative;
    top: 80px;
  }

  footer p {
    position: relative;
    bottom: -100px;
  }
}

@media screen and (max-width:899px) {
  /*태블릿 세로*/

  footer {
    position: relative;
    top: 200px;
  }

  footer p {
    position: relative;
    bottom: -50px;
  }
}

@media screen and (max-width:599px) {
  /*모바일 가로*/

  footer {
    position: relative;
    bottom: 30px;
  }

  footer p {
    position: relative;
    bottom: -50px;
  }
}

@media screen and (max-width:420px) {
  /*모바일 세로*/


  footer {
    position: relative;
    bottom: 30px;
  }

  footer p {
    position: relative;
    bottom: -130px;
  }
}