.container2 {
  width: 100%;
  padding-right: 15px;
  padding-left: 15px;
  margin-right: auto;
  margin-left: auto;
}
.search{
  z-index: 999;
  width: 100%;
  height:  auto;
}

input[type=text] {
    width: 150px;
    box-sizing: border-box;
    border: 1px solid #ccc;
    border-radius: 4px;
    font-size: 13px;
    background-color: white;
    background-position: 10px 10px;
    background-repeat: no-repeat;
    padding: 0px 20px 0px 40px;
    margin: 6px 0px 0px 10px;
    -webkit-transition: width 0.4s ease-in-out;
    transition: width 0.4s ease-in-out;
}

input[type=text]:focus {
    width: 100%;
}