body {
  background-color: rgb(249, 249, 249);
}
.navbar {
  background-color: #fff;
}
.mainContainer {
  position: relative;
  top: 52px;
}
.mainContainer {
  width: 1170px;
  margin: 0 auto;
  padding: 15px 15px;
}
.mainContainer .row .tip li {
  list-style: none;
}
.mainContainer .nav-box ul li a {
  color: #777;
}
#box,
#box2 {
  margin-top: 20px;
  height: 46px;
}
.fragment-group {
  overflow: hidden;
  padding-left: 0;
}
.hide {
  visibility: hidden;
}
.fragment-group .fragment {
  float: left;
  width: 30%;
  padding-right: 10px;
  list-style: none;
  margin-top: 10px;
}
.file-input {
  display: inline-block;
  box-sizing: border-box;
  width: 130px;
  height: 46px;
  opacity: 0;
  cursor: pointer;
}

.mainContainer .select-button {
  position: absolute;
  background-color: #00b7ee;
  color: #fff;
  font-size: 18px;
  padding: 0 30px;
  line-height: 44px;
  font-weight: 100;
  box-shadow: 0 1px 1px rgba(0, 0, 0, 0.1);
}
.speed {
  margin-top: 15px;
}