body,html {
    margin:0;
    height: 100%;
    width: 100%;
}
img{
  width: 24px;
  height: 24px;
}
.box{
    position:absolute;
    top:50%;
    left:50%;
    width: 512px;
    height: 48px;
    margin: -24px 0 0 -256px;
    background-color: #FFFFFF;
    box-shadow: 0px 0px 10px 1px rgba(0,0,0,0.3);
    border-radius: 25px;
}
.btn{
    position: absolute;
    right: 0;
    float: right;
    border: none;
    border-radius: 25px;
    background-color: #FFFFFF;
    height: 42px;
    width: 42px;
    margin: 3px;
    outline: none;
}
.btn:hover{
    background-color: rgba(235,235,235,1);
}
.ipt{
    position: absolute;
    float: left;
    left: 24px;
    height: 46px;
    width: 440px;
    font-size: 20px;
    border: none;
    outline: none;
    font-weight: 100;
}