.searchbox {
  position: relative;
  min-width: 40px;
  width: 0%;
  height: 40px;
  float: right;
  overflow: hidden;
  -webkit-transition: width 0.3s;
  -moz-transition: width 0.3s;
  -ms-transition: width 0.3s;
  -o-transition: width 0.3s;
  transition: width 0.3s;
}

.searchbox-input {
  top: 0;
  right: 0;
  border: 1px solid #75777c;
  outline: 0;
  background: #fff;
  width: 100%;
  height: 40px;
  margin: 0;
  padding: 0px 55px 0px 20px;
  font-size: 17px;
  color: #75777c;
}

  .searchbox-input::-webkit-input-placeholder {
    color: #75777c;
  }

  .searchbox-input:-moz-placeholder {
    color: #75777c;
  }

  .searchbox-input::-moz-placeholder {
    color: #75777c;
  }

  .searchbox-input:-ms-input-placeholder {
    color: #75777c;
  }

.searchbox-icon,
.searchbox-submit {
  width: 40px;
  height: 40px;
  display: block;
  position: absolute;
  top: 0;
  font-size: 16px;
  right: 0;
  padding: 0;
  margin: 0;
  border: 0;
  outline: 0;
  line-height: 40px;
  text-align: center;
  cursor: pointer;
  color: #fff;
  background: #75777c;
  border-radius: .25rem;
}



.searchbox-open {
  width: 25%;
}