.hide{
    display: none;
}

.loader{
  display: inline-block;
}

.loader.load {
    border: 7px solid #f3f3f3;
    border-top: 7px solid #3498db;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    animation: spin 2s linear infinite;
    vertical-align: middle;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}