body {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin: 0;
  background-color: #f1f4f1;
}
#head {
  width: 86%;
  height: 130px;
  max-width: 530px;
  background-color: #6f8ebe;
  border-radius: 0 0 10px 10px;
  padding: 15px;
  margin: 0 0 50px 0;
  color: whitesmoke;
  box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.13), 0 1px 1px 0 rgba(0, 0, 0, 0.11);
}
@media only screen and (min-width: 600px) {
  #cover img {
    object-position: 0 -20px;
  }
}
#cover {
  max-height: 130px;
  overflow: hidden;
  position: relative;
  top: 4px;
  border-radius: 10px;
  box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.13), 0 1px 1px 0 rgba(0, 0, 0, 0.11);
}
#cover img {
  object-fit: cover;
  width: 100%;
  height: 100%;
}
#heading {
  font-size: 26px;
  margin: 0;
}
#url {
  font-size: 10px;
  color: inherit;
}
.body {
  width: 80%;
  max-width: 510px;
  background-color: white;
  border-radius: 10px;
  padding: 15px;
  margin: 10px 0;
  box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.13), 0 1px 1px 0 rgba(0, 0, 0, 0.11);
}
.about {
  width: 80%;
  max-width: 510px;
  background-color: white;
  border-radius: 10px;
  padding: 15px;
  margin: 5px 0;
  box-shadow: 0 2px 4px 0 rgba(0, 0, 0, 0.13), 0 1px 1px 0 rgba(0, 0, 0, 0.11);
}
.about a {
  color: pink;
}
.title {
  margin: 0 0 0 5px;
  font-size: 20px;
  font-weight: bold;
}
p {
  margin: 8px 0;
}
.content {
  width: 100%;
}
.row {
  display: flex;
  justify-content: center;
}
button {
  color: whitesmoke;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  border-radius: 10px;
  border: 0;
  background-color: #6f8ebe;
  font-size: 15px;
  height: 50px;
  flex: 1;
  margin: 5px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
/* 水波纹动画 */
.ripple {
  position: absolute;
  border-radius: 50%;
  background-color: rgba(187, 81, 88, 0.7);
  animation-name: ripple;
  animation-duration: 1s;
  animation-timing-function: ease-out;
  animation-fill-mode: forwards;
}
/* 动画关键帧 */
@keyframes ripple {
  from {
    transform: scale(0);
    opacity: 1;
  }
  to {
    transform: scale(2);
    opacity: 0;
  }
}

.shaky {
  display: inline-block;
  padding: 1px;
  font-size: 12px;
  -webkit-transform-origin: center center;
  -ms-transform-origin: center center;
  transform-origin: center center;
  -webkit-animation-name: shaky-slow;
  -ms-animation-name: shaky-slow;
  animation-name: shaky-slow;
  -webkit-animation-duration: 4s;
  -ms-animation-duration: 4s;
  animation-duration: 4s;
  -webkit-animation-iteration-count: infinite;
  -ms-animation-iteration-count: infinite;
  animation-iteration-count: infinite;
  -webkit-animation-timing-function: ease-in-out;
  -ms-animation-timing-function: ease-in-out;
  animation-timing-function: ease-in-out;
  -webkit-animation-delay: 0s;
  -ms-animation-delay: 0s;
  animation-delay: 0s;
  -webkit-animation-play-state: running;
  -ms-animation-play-state: running;
  animation-play-state: running;
}
@-webkit-keyframes shaky-slow {
  0% {
    -webkit-transform: translate(0px, 0px) rotate(0deg);
  }
  2% {
    -webkit-transform: translate(-1px, 1.5px) rotate(1.5deg);
  }
  4% {
    -webkit-transform: translate(1.3px, 0px) rotate(-0.5deg);
  }
  6% {
    -webkit-transform: translate(1.4px, 1.4px) rotate(-2deg);
  }
  8% {
    -webkit-transform: translate(-1.3px, -1px) rotate(-1.5deg);
  }
  10% {
    -webkit-transform: translate(1.4px, 0px) rotate(-2deg);
  }
  12% {
    -webkit-transform: translate(-1.3px, -1px) rotate(-2deg);
  }
  14% {
    -webkit-transform: translate(1.5px, 1.3px) rotate(1.5deg);
  }
  16% {
    -webkit-transform: translate(1.5px, -1.5px) rotate(-1.5deg);
  }
  18% {
    -webkit-transform: translate(1.3px, -1.3px) rotate(-2deg);
  }
  20% {
    -webkit-transform: translate(1px, 1px) rotate(-0.5deg);
  }
  22% {
    -webkit-transform: translate(1.3px, 1.5px) rotate(-2deg);
  }
  24% {
    -webkit-transform: translate(-1.4px, -1px) rotate(2deg);
  }
  26% {
    -webkit-transform: translate(1.3px, -1.3px) rotate(0.5deg);
  }
  28% {
    -webkit-transform: translate(1.6px, -1.6px) rotate(-2deg);
  }
  30% {
    -webkit-transform: translate(-1.3px, -1.3px) rotate(-1.5deg);
  }
  32% {
    -webkit-transform: translate(-1px, 0px) rotate(2deg);
  }
  34% {
    -webkit-transform: translate(1.3px, 1.3px) rotate(-0.5deg);
  }
  36% {
    -webkit-transform: translate(1.3px, 1.6px) rotate(1.5deg);
  }
  38% {
    -webkit-transform: translate(1.3px, -1.6px) rotate(1.5deg);
  }
  40% {
    -webkit-transform: translate(-1.4px, -1px) rotate(-0.5deg);
  }
  42% {
    -webkit-transform: translate(-1.4px, 1.3px) rotate(-0.5deg);
  }
  44% {
    -webkit-transform: translate(-1.6px, 1.4px) rotate(0.5deg);
  }
  46% {
    -webkit-transform: translate(-2.1px, -1.3px) rotate(-0.5deg);
  }
  48% {
    -webkit-transform: translate(1px, 1.6px) rotate(1.5deg);
  }
  50% {
    -webkit-transform: translate(1.6px, 1.6px) rotate(1.5deg);
  }
  52% {
    -webkit-transform: translate(-1.4px, 1.6px) rotate(0.5deg);
  }
  54% {
    -webkit-transform: translate(1.6px, -1px) rotate(-2deg);
  }
  56% {
    -webkit-transform: translate(1.3px, -1.6px) rotate(-2deg);
  }
  58% {
    -webkit-transform: translate(-1.3px, -1.6px) rotate(0.5deg);
  }
  60% {
    -webkit-transform: translate(1.3px, 1.6px) rotate(-0.5deg);
  }
  62% {
    -webkit-transform: translate(0px, 0px) rotate(-1.5deg);
  }
  64% {
    -webkit-transform: translate(-1.6px, -1.6px) rotate(-2deg);
  }
  66% {
    -webkit-transform: translate(1.6px, -1.6px) rotate(0.5deg);
  }
  68% {
    -webkit-transform: translate(0px, -1.6px) rotate(-2deg);
  }
  70% {
    -webkit-transform: translate(-1.6px, 1px) rotate(1.5deg);
  }
  72% {
    -webkit-transform: translate(-1.6px, 1.6px) rotate(2deg);
  }
  74% {
    -webkit-transform: translate(1.3px, -1.6px) rotate(-0.5deg);
  }
  76% {
    -webkit-transform: translate(1.4px, 1px) rotate(-0.5deg);
  }
  78% {
    -webkit-transform: translate(-1px, 1.4px) rotate(2deg);
  }
  80% {
    -webkit-transform: translate(1.4px, 1.6px) rotate(2deg);
  }
  82% {
    -webkit-transform: translate(-1.6px, -1.6px) rotate(-0.5deg);
  }
  84% {
    -webkit-transform: translate(-1.4px, 1.4px) rotate(-2deg);
  }
  86% {
    -webkit-transform: translate(1px, 1.4px) rotate(-2deg);
  }
  88% {
    -webkit-transform: translate(-1.4px, 1.4px) rotate(-1.5deg);
  }
  90% {
    -webkit-transform: translate(-1.6px, -1.6px) rotate(-2deg);
  }
  92% {
    -webkit-transform: translate(-1.6px, 1.6px) rotate(2deg);
  }
  94% {
    -webkit-transform: translate(-1.6px, -1.6px) rotate(-2deg);
  }
  96% {
    -webkit-transform: translate(-1.4px, 1.3px) rotate(-2deg);
  }
  98% {
    -webkit-transform: translate(1.3px, 1px) rotate(-0.5deg);
  }
}
@keyframes shaky-slow {
  0% {
    transform: translate(0px, 0px) rotate(0deg);
  }
  2% {
    transform: translate(-1px, 1.5px) rotate(1.5deg);
  }
  4% {
    transform: translate(1.3px, 0px) rotate(-0.5deg);
  }
  6% {
    transform: translate(1.4px, 1.4px) rotate(-2deg);
  }
  8% {
    transform: translate(-1.3px, -1px) rotate(-1.5deg);
  }
  10% {
    transform: translate(1.4px, 0px) rotate(-2deg);
  }
  12% {
    transform: translate(-1.3px, -1px) rotate(-2deg);
  }
  14% {
    transform: translate(1.5px, 1.3px) rotate(1.5deg);
  }
  16% {
    transform: translate(1.5px, -1.5px) rotate(-1.5deg);
  }
  18% {
    transform: translate(1.3px, -1.3px) rotate(-2deg);
  }
  20% {
    transform: translate(1px, 1px) rotate(-0.5deg);
  }
  22% {
    transform: translate(1.3px, 1.5px) rotate(-2deg);
  }
  24% {
    transform: translate(-1.4px, -1px) rotate(2deg);
  }
  26% {
    transform: translate(1.3px, -1.3px) rotate(0.5deg);
  }
  28% {
    transform: translate(1.6px, -1.6px) rotate(-1.5deg);
  }
  30% {
    transform: translate(-1.3px, -1.3px) rotate(-1.5deg);
  }
  32% {
    transform: translate(-1px, 0px) rotate(2deg);
  }
  34% {
    transform: translate(1.3px, 1.3px) rotate(-0.5deg);
  }
  36% {
    transform: translate(1.3px, 1.6px) rotate(1.5deg);
  }
  38% {
    transform: translate(1.3px, -1.6px) rotate(1.5deg);
  }
  40% {
    transform: translate(-1.4px, -1px) rotate(-0.5deg);
  }
  42% {
    transform: translate(-1.4px, 1.3px) rotate(-0.5deg);
  }
  44% {
    transform: translate(-1.6px, 1.4px) rotate(0.5deg);
  }
  46% {
    transform: translate(-2.1px, -1.3px) rotate(-0.5deg);
  }
  48% {
    transform: translate(1px, 1.6px) rotate(1.5deg);
  }
  50% {
    transform: translate(1.6px, 1.6px) rotate(1.5deg);
  }
  52% {
    transform: translate(-1.4px, 1.6px) rotate(0.5deg);
  }
  54% {
    transform: translate(1.6px, -1px) rotate(-2deg);
  }
  56% {
    transform: translate(1.3px, -1.6px) rotate(-2deg);
  }
  58% {
    transform: translate(-1.3px, -1.6px) rotate(0.5deg);
  }
  60% {
    transform: translate(1.3px, 1.6px) rotate(-0.5deg);
  }
  62% {
    transform: translate(0px, 0px) rotate(-1.5deg);
  }
  64% {
    transform: translate(-1.6px, -1.6px) rotate(-2deg);
  }
  66% {
    transform: translate(1.6px, -1.6px) rotate(0.5deg);
  }
  68% {
    transform: translate(0px, -1.6px) rotate(-2deg);
  }
  70% {
    transform: translate(-1.6px, 1px) rotate(1.5deg);
  }
  72% {
    transform: translate(-1.6px, 1.6px) rotate(2deg);
  }
  74% {
    transform: translate(1.3px, -1.6px) rotate(-0.5deg);
  }
  76% {
    transform: translate(1.4px, 1px) rotate(-0.5deg);
  }
  78% {
    transform: translate(-1px, 1.4px) rotate(2deg);
  }
  80% {
    transform: translate(1.4px, 1.6px) rotate(2deg);
  }
  82% {
    transform: translate(-1.6px, -1.6px) rotate(-0.5deg);
  }
  84% {
    transform: translate(-1.4px, 1.4px) rotate(-2deg);
  }
  86% {
    transform: translate(1px, 1.4px) rotate(-2deg);
  }
  88% {
    transform: translate(-1.4px, 1.4px) rotate(-1.5deg);
  }
  90% {
    transform: translate(-1.6px, -1.6px) rotate(-2deg);
  }
  92% {
    transform: translate(-1.4px, 1.6px) rotate(2deg);
  }
  94% {
    transform: translate(-1.6px, -1.6px) rotate(-2deg);
  }
  96% {
    transform: translate(-1.4px, 1.3px) rotate(-2deg);
  }
  98% {
    transform: translate(1.3px, 1px) rotate(-0.5deg);
  }
}