.loader1 {
    width: 48px;
    height: 48px;
    border: 5px solid #FFF;
    border-bottom-color: #FF3D00;
    border-radius: 50%;
    display: inline-block;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}

@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}
.loader2 {
    width: 48px;
    height: 48px;
    border: 3px solid #FFF;
    border-radius: 50%;
    display: inline-block;
    position: relative;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}
.loader2::after {
    content: '';
    box-sizing: border-box;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 3px solid transparent;
    border-bottom-color: #FF3D00;
}

@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}
.loader3 {
    width: 48px;
    height: 48px;
    border: 2px solid #FFF;
    border-radius: 50%;
    display: inline-block;
    position: relative;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}
.loader3::after,
.loader3::before {
    content: '';
    box-sizing: border-box;
    position: absolute;
    left: 0;
    top: 0;
    background: #FF3D00;
    width: 6px;
    height: 6px;
    transform: translate(150%, 150%);
    border-radius: 50%;
}
.loader3::before {
    left: auto;
    top: auto;
    right: 0;
    bottom: 0;
    transform: translate(-150%, -150%);
}

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


.loader4 {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: inline-block;
    position: relative;
    border: 2px solid #FF3D00;
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}
.loader4::after {
    content: '';
    box-sizing: border-box;
    position: absolute;
    left: 4px;
    top: 4px;
    border: 2px solid #FFF;
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

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

.loader5 {
    width: 48px;
    height: 48px;
    border: 3px dotted #FFF;
    border-style: solid solid dotted dotted;
    border-radius: 50%;
    display: inline-block;
    position: relative;
    box-sizing: border-box;
    animation: rotation 2s linear infinite;
}
.loader5::after {
    content: '';
    box-sizing: border-box;
    position: absolute;
    left: 0;
    right: 0;
    top: 0;
    bottom: 0;
    margin: auto;
    border: 3px dotted #FF3D00;
    border-style: solid solid dotted;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    animation: rotationBack 1s linear infinite;
    transform-origin: center center;
}

@keyframes rotation {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}
@keyframes rotationBack {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(-360deg);
    }
}
.loader6 {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: inline-block;
    position: relative;
    background: linear-gradient(0deg, rgba(255, 61, 0, 0.2) 33%, #ff3d00 100%);
    box-sizing: border-box;
    animation: rotation 1s linear infinite;
}
.loader6::after {
    content: '';
    box-sizing: border-box;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: #263238;
}
@keyframes rotation {
    0% { transform: rotate(0deg) }
    100% { transform: rotate(360deg)}
}