html程式碼:

<section>
    <div class="loader loader-1">
        <div class="loader-outter"></div>
        <div class="loader-inner"></div>
    </div>
</section>

css程式碼:

.loader {
    position: relative;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin: 30% auto 20%;
    vertical-align: middle;
}
/*LOADER-1*/
    
.loader-1 .loader-outter {
    position: absolute;
    border: 4px solid #fd9025;
    border-left-color: transparent;
    border-bottom: 0;
    width: 100%;
    height: 100%;
    border-radius: 50%;
    -webkit-animation: loader-1-outter 1s cubic-bezier(.42, .61, .58, .41) infinite;
    animation: loader-1-outter 1s cubic-bezier(.42, .61, .58, .41) infinite;
}

.loader-1 .loader-inner {
    position: absolute;
    border: 4px solid #fd9025;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    left: calc(50% - 20px);
    top: calc(50% - 20px);
    border-right: 0;
    border-top-color: transparent;
    -webkit-animation: loader-1-inner 1s cubic-bezier(.42, .61, .58, .41) infinite;
    animation: loader-1-inner 1s cubic-bezier(.42, .61, .58, .41) infinite;
}
@-webkit-keyframes loader-1-outter {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@keyframes loader-1-outter {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(360deg);
        transform: rotate(360deg);
    }
}

@-webkit-keyframes loader-1-inner {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(-360deg);
        transform: rotate(-360deg);
    }
}

@keyframes loader-1-inner {
    0% {
        -webkit-transform: rotate(0deg);
        transform: rotate(0deg);
    }
    100% {
        -webkit-transform: rotate(-360deg);
        transform: rotate(-360deg);
    }
}
/* 載入...end */