.marginTop15{
    margin-top:15px;
}


.loader {
        position: absolute;
        left: 45%;
        top: 45%;
        z-index: 1;
        border: 8px solid #f3f3f3; /* Light grey */
        border-top: 8px solid #337ab7; /* Blue */
        border-radius: 50%;
        width: 60px;
        height: 60px;
        animation: spin 2s linear infinite;
        -webkit-animation: spin 2s linear infinite;
    }

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

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

@media (min-width:768px){
    .loader {
    position: absolute;
    left: 45%;
    top: 45%;
    z-index: 1;
    border: 16px solid #f3f3f3; /* Light grey */
    border-top: 16px solid #337ab7; /* Blue */
    border-radius: 50%;
    width: 120px;
    height: 120px;
    animation: spin 2s linear infinite;
    -webkit-animation: spin 2s linear infinite;
}
}