form .img-thumbnail {
    display: inline-block;
    max-width: 100%;
    height: auto;
    padding: 4px;
    line-height: 1.42857143;
    background-color: #fff;
    border: 1px solid #ddd;
    border-radius: 4px;
    -webkit-transition: all .2s ease-in-out;
    -o-transition: all .2s ease-in-out;
    transition: all .2s ease-in-out;
}
form .btn{
    display: inline-block;
    padding: 6px 12px;
    margin-bottom: 0;
    font-size: 14px;
    font-weight: 400;
    line-height: 1.42857143;
    text-align: center;
    white-space: nowrap;
    vertical-align: middle;
    -ms-touch-action: manipulation;
    touch-action: manipulation;
    cursor: pointer;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
    background-image: none;
    border: 1px solid transparent;
    border-radius: 4px;
    border-radius: 3px;
    margin-bottom: 5px;
    margin-right: 5px;
}
form .btn-danger {
    color: #fff;
    background-color: #d9534f;
    border-color: #d43f3a;
}
form input[type=file] {
    display: block;
}
form .btn-primary {
    color: #fff;
    background-color: #337ab7;
    border-color: #2e6da4;
}