.upload-area {
    margin-bottom: 5px;
}
.upload-area .btn {
    margin-right: 10px;
}
.upload-area .well {
    margin: 0 0 10px;
    border: dotted 3px lightgray;
}
.upload-area .help-block {
    margin-top: 10px;
}
.upload-area .nv-file-over {
    border: dotted 3px black;
}
.multiple-file-upload .button-container {
    position: relative;
    display: inline-block;
}
.multiple-file-upload .button-container .btn {
    position: absolute;
    right: -9px;
    bottom: 11px;
}
.multiple-file-upload .files .file {
    display: inline-block;
    margin: 0 10px 10px 0;
}
.form-group.checkbox {
    margin-top: 30px;
}
.thumbnail {
    margin: 10px 0;
    max-height: 150px;
}
.dropdown-menu.qr-code {
    min-width: 70px;
}
.loader {
    border: 16px solid #f3f3f3; /* Light grey */
    border-top: 16px solid #3498db; /* Blue */
    border-radius: 50%;
    width: 120px;
    height: 120px;
    top: 80%;
    left: 50%;
    position: absolute;
    animation: spin 2s linear infinite;
    z-index: 1;

}
.loader-text{
    position: absolute;
    top: 87%;
    left: 50%;
    z-index: 1;

}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.img-big-container{
    flex-direction: row;
    display: flex;
    justify-content: center;
}
.img-big{
    max-width: 100%;
}
.img-container {
    flex-direction: row;
    display: flex;
    flex-wrap: wrap;
}
.arrow-style {

    font-size: 3em;
}

.column-flex {
    flex-direction: column;
    display: flex;
    justify-content: center;
}