.loader {
border: 16px solid #6e7479; /* Light grey */
border-top: 16px solid #3498db; /* Blue */
border-radius: 50%;
width: 120px;
height: 120px;
animation: spin 2s linear infinite;
position: fixed;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}

.loader-sm {
border: 5px solid #6e7479; /* Light grey */
border-top: 5px solid #3498db; /* Blue */
border-radius: 50%;
width: 40px;
height: 40px;
animation: spin 2s linear infinite;
transform: translate(-50%, -50%);
margin: auto;

}

.loader-mb {
border: 10px solid #6e7479; /* Light grey */
border-top: 10px solid #3498db; /* Blue */
border-radius: 50%;
width: 80px;
height: 80px;
animation: spin 2s linear infinite;
transform: translate(-50%, -50%);
margin: auto;

}


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