CSS模拟小船前进

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好玩有趣的css动画效果

<div id='bgr'></div>
    <div id='raftHolder'>
        <div id='raft'>
            <div id='raftTop'></div>
            <div id='raftBottom'></div>
        </div>
    </div>
    <div id='raftRipples'>
        <div class='raftRipple'></div>
        <div class='raftRipple'></div>
    </div>
    <div id='raftReflection'>
        <div class='raftReflectionSegment'></div>
        <div class='raftReflectionSegment'></div>
        <div class='raftReflectionSegment'></div>
    </div>

@import url(https://fonts.googleapis.com/css?family=Open+Sans:800);
body {
  background: #000;
  overflow: hidden;
}

#bgr {
  position: absolute;
  margin: auto;
  top: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(#000, #111, #222, #000);
}

#raftHolder {
  position: absolute;
  margin: auto;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  width: 100px;
  height: 50px;
  overflow: hidden;
}

#raft {
  position: absolute;
  margin: auto;
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
  transform: rotate(-5deg);
  -webkit-animation-name: raftFloat;
          animation-name: raftFloat;
  -webkit-animation-duration: 1s;
          animation-duration: 1s;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  -webkit-animation-direction: alternate;
          animation-direction: alternate;
  -webkit-animation-timing-function: ease-in-out;
          animation-timing-function: ease-in-out;
}

#raftBottom {
  position: absolute;
  margin: auto;
  top: 34px;
  bottom: 0;
  left: 0;
  right: 0;
  width: 0px;
  height: 0px;
  border-bottom: 20px solid #555;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
}
#raftBottom::before {
  content: "";
  position: absolute;
  margin: auto;
  width: 0px;
  height: 0px;
  left: -40px;
  border-top: 20px solid #2A2A2A;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
}
#raftBottom::after {
  content: "";
  position: absolute;
  margin: auto;
  width: 0px;
  height: 0px;
  border-top: 20px solid #888;
  border-left: 20px solid transparent;
  border-right: 20px solid transparent;
}

#raftTop {
  position: absolute;
  margin: auto;
  top: -7px;
  left: 20px;
  right: 0;
  bottom: 0;
  width: 0px;
  height: 0px;
  border-bottom: 20px solid #fff;
  border-right: 20px solid transparent;
}
#raftTop::before {
  content: "";
  position: absolute;
  margin: auto;
  width: 0px;
  height: 0px;
  left: -20px;
  border-bottom: 20px solid #333;
  border-left: 20px solid transparent;
}

#raftRipples {
  position: absolute;
  margin: auto;
  top: 50px;
  bottom: 0;
  left: 0;
  right: 100px;
  width: 200px;
  height: 50px;
}

.raftRipple {
  position: absolute;
  margin: auto;
  width: 0px;
  height: 4px;
  border-radius: 2px;
  opacity: 0.1;
  background: #fff;
  -webkit-animation-name: raftRippleMove;
          animation-name: raftRippleMove;
  -webkit-animation-duration: 1.5s;
          animation-duration: 1.5s;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  -webkit-animation-timing-function: ease-in-out;
          animation-timing-function: ease-in-out;
}
.raftRipple:nth-child(1) {
  top: 30px;
  left: 120px;
  -webkit-animation-delay: 1s;
          animation-delay: 1s;
}
.raftRipple:nth-child(2) {
  top: 24px;
  left: 120px;
  -webkit-animation-delay: 1.5s;
          animation-delay: 1.5s;
}

#raftReflection {
  position: absolute;
  margin: auto;
  top: 90px;
  bottom: 0;
  right: 0;
  left: 10px;
  width: 100px;
  height: 50px;
}

.raftReflectionSegment {
  position: absolute;
  margin: auto;
  height: 4px;
  border-radius: 2px;
  bottom: 0;
  left: 0;
  right: 0;
  background: #fff;
  -webkit-animation-name: raftReflectionMove;
          animation-name: raftReflectionMove;
  -webkit-animation-duration: 1s;
          animation-duration: 1s;
  -webkit-animation-iteration-count: infinite;
          animation-iteration-count: infinite;
  -webkit-animation-direction: alternate;
          animation-direction: alternate;
  -webkit-animation-timing-function: ease-in-out;
          animation-timing-function: ease-in-out;
}
.raftReflectionSegment:nth-child(1) {
  top: -30px;
  width: 35px;
  opacity: 0.1;
}
.raftReflectionSegment:nth-child(2) {
  top: -16px;
  width: 45px;
  -webkit-animation-delay: 0.2s;
          animation-delay: 0.2s;
  opacity: 0.05;
}
.raftReflectionSegment:nth-child(3) {
  top: -2px;
  width: 60px;
  -webkit-animation-delay: 0.4s;
          animation-delay: 0.4s;
  opacity: 0.02;
}

@-webkit-keyframes raftReflectionMove {
  0% {
    transform: scale(1.2, 1) translate(5px);
  }
  100% {
    transform: scale(1, 1) translate(-10px);
  }
}

@keyframes raftReflectionMove {
  0% {
    transform: scale(1.2, 1) translate(5px);
  }
  100% {
    transform: scale(1, 1) translate(-10px);
  }
}
@-webkit-keyframes raftRippleMove {
  0% {
    width: 0px;
  }
  70% {
    width: 50px;
  }
  100% {
    transform: translate(-100px);
    width: 0px;
    opacity: 0;
  }
}
@keyframes raftRippleMove {
  0% {
    width: 0px;
  }
  70% {
    width: 50px;
  }
  100% {
    transform: translate(-100px);
    width: 0px;
    opacity: 0;
  }
}
@-webkit-keyframes raftFloat {
  0% {
    transform: rotate(3deg) translate(10px, -2px);
  }
  100% {
    transform: rotate(-3deg) translate(-5px);
  }
}
@keyframes raftFloat {
  0% {
    transform: rotate(3deg) translate(10px, -2px);
  }
  100% {
    transform: rotate(-3deg) translate(-5px);
  }
}