#container {
    position: relative;
}
.container{
    padding: 10px;
}
.section {
    padding: 30px;
    border: 1px solid #dbdbdb;
    width: 45%;
    display: inline-block;
    float: none;
    margin-bottom: 30px;
    vertical-align: top;
}
.input-file {
    display: inline-block;
    width: 202px;
    font-size: 14px;
}
button, input[type=button] {
    padding: 10px;
    font-size: 12px;
}
label {
    font-weight: bold;
    margin: 20px 0;
}
span {
    display: block;
    margin-top: 10px;
}
.error{
    color: red;
}
.clear {
    clear: both;
}
.loader{
    position: absolute;
    font-size: 30px;
    background: rgba(0, 0, 0, 0.18);
    height: 100%;
    width: 100%;
    top: 0;
    color: black;
    display: none;
}
.loader i.fa.fa-refresh.fa-spin{
    display: inline-block;
    position: relative;
    top: 50%;
    left: 50%;
}