.loader,
.loader:after {
    border-radius: 50%;
    width: 10em;
    height: 10em;
}

.loader {
    margin: 60px auto;
    font-size: 10px;
    position: relative;
    text-indent: -9999em;
    border-width: 1.1em;
    border-style: solid; 
    border-color: rgba(0, 0, 0, 0.2); 
    border-left-color: rgba(0, 0, 0, 1); 
    -webkit-transform: translateZ(0);
    -ms-transform: translateZ(0);
    transform: translateZ(0);
    -webkit-animation: load8 1.1s infinite linear;
    animation: load8 1.1s infinite linear;
}

.loader--yelow {
    border-color: rgba(254, 206, 62, 0.2); 
    border-left-color: #fece3e; 
}  

.loader--brown {
    border-color: rgba(153, 127, 104, 0.2); 
    border-left-color: #997f68; 
}  

.loader--green {
    border-color: rgba(1, 174, 66, 0.2); 
    border-left-color: #01ae42; 
}  

.loader--blue {
    border-color: rgba(0, 135, 119, 0.2); 
    border-left-color: #008777; 
}  

@-webkit-keyframes load8 {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}
@keyframes load8 {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}