.side-menu {
  width: 21.5625rem;
  display: inline-block;
  vertical-align: top;
  font-size: 1.5rem;
  color: #333333;
  line-height: 7.5rem;
  text-align: center;
  margin-left: 5.7%;
}
.content {
  display: inline-block;
  width: 65.8%;
  margin-left: 5.4%;
  margin-top: 40px;
}
.side-menu-item {
  width: 100%;
  background-color: #fff;
  height: 7.5rem;
  cursor: pointer;
}

.side-menu-item:hover,
.side-menu-item.active,
.bottom {
  background-color: #a12916;
  color: #fff;
  position: relative;
}

.side-menu-item:hover::before,
.side-menu-item.active::before,
.bottom::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-image: url('../img/side-active.png');
  background-size: 100% 100%;
}
.side-menu .bottom {
  height: 200px;
}
.side-menu .bottom::before {
  background-image: url('../img/side-menu-bottom-bg.png');
}

body {
  background-image: url('../img/content-bg.png');
  background-size: 100%;
  background-repeat: repeat-y;
}
.content-box {
  padding-top: 50px;
  color: #333333;
  width: 100%;
}
.contetn-item {
  height: 6.5625rem;
  background: #ffffff;
  line-height: 6.5625rem;
  padding: 0 120px;
  margin: 12px 0;
  cursor: pointer;
}
.contetn-item .date {
  display: inline-block;
  text-align: right;
  width: 17%;
  vertical-align: middle;
  color: #a12916;
}
.contetn-item .tilte {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  width: 80%;
  display: inline-block;
  vertical-align: middle;
}
.contetn-item:hover {
  background: #a12916;
  border: 1px solid #f7f7f7;
  color: #fff;
}
.contetn-item:hover .date {
  color: #fff;
}