:root {
  --height: 100px;
  --width: 200px;
}
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
.wrapper {
  width: calc(4 * var(--width));
  height: calc(4 * var(--height));
  display: flex;
  justify-content: center;
  align-items: center;
}

.buttonsm {
  position: relative;
  width: calc(0.8 * var(--width));
  height: calc(0.7 * var(--height));
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  overflow: hidden;
  margin: 0 0.8rem;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2), 0 3px 8px rgba(0, 0, 0, 0.1);
  transition: all 0.3s cubic-bezier(0, 0.22, 0.3, 1);
}
.buttonsm:before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.1);
}
.button span {
  color: #fff;
  font-size: 1rem;
  z-index: 10;
  text-transform: uppercase;
  letter-spacing: 2px;
}
.buttonsm._1 {
  background: #2980b9;
}
.buttonsm .back {
  position: absolute;
  width: 0;
  height: 0;
  filter: url(#filter);
  border-radius: 50%;
  z-index: 5;
  transition: all 2.5s cubic-bezier(0.1, 0.22, 0.3, 1);
}
.buttonsm._1 .back {
  left: -50%;
  top: -50%;
  background: #27ae60;
}
.buttonsm:hover .back {
  width: calc(2 * var(--width));
  height: calc(2 * var(--height));
}

@media only screen and (max-width: 750px) {
  .wrapper {
    flex-direction: column;
  }
  .buttonsm {
    margin: 0.8rem 0;
  }
}
/* 评论区配图 */
/* div.commentform textarea{
  width: 510px;
  height: 218px;
  font-size: 13px;
  border: 1px solid #ccc;
  font-family: 'PingFang SC','Helvetica Neue','Helvetica','Arial',sans-serif;
  background: url(https://blog-static.cnblogs.com/files/blogs/780628/2022116154104667.gif?t=1692952705);
  background-size: contain;
  border-top: 0px;
  border-left: 0;
  border-right: 0;
  border-bottom: 0;
} */
/* 评论区带头像且支持旋转，css和页脚都要配置 */
.feedbackCon img:hover {
    -webkit-transform: rotateZ(360deg);
    -moz-transform: rotateZ(360deg);
    -ms-transform: rotateZ(360deg);
    -o-transform: rotateZ(360deg);
    transform: rotateZ(360deg);
}
.feedbackCon img {
    border-radius: 40px;
    -webkit-transition: all 0.6s ease-out;
    -moz-transition: all 0.5s ease-out;
    -ms-transition: all 0.5s ease-out;
    -o-transition: all 0.5s ease-out;
    transition: all 0.5s ease-out;
}

textarea#tbCommentBody {width: calc(100% - 20px);border-radius: 10px;outline: 0;padding: 10px;height: 200px;position: relative;
background: #fff url(https://images.cnblogs.com/cnblogs_com/blogs/780628/galleries/2265159/o_230119115726_send-message.png);
background-size: contain;background-repeat: no-repeat;background-position: right;resize: vertical;}


#loading{bottom:0;left:0;position:fixed;right:0;top:0;z-index:9999;background-color:#f4f5f5;pointer-events:none;}.loader-inner{will-change:transform;width:40px;height:40px;position:absolute;top:50%;left:50%;margin:-20px 0 0 -20px;background-color:#3742fa;border-radius:50%;animation:scaleout 0.6s infinite ease-in-out forwards;text-indent:-99999px;z-index:999991;}@keyframes scaleout{0%{transform:scale(0);opacity:0;}40%{opacity:1;}100%{transform:scale(1);opacity:0;}}