6种纯css实现loading效果

1、

<div id="loadingWrap1">
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
</div>


#loadingWrap1 {
    position: relative
}

#loadingWrap1 span {
    display: block;
    bottom: 0;
     9px;
    height: 5px;
    background: #9b59b6;
    position: absolute;
    -webkit-animation: loadingWrap1 1.5s infinite ease-in-out;
    -moz-animation: loadingWrap1 1.5s infinite ease-in-out;
    -ms-animation: loadingWrap1 1.5s infinite ease-in-out;
    -o-animation: loadingWrap1 1.5s infinite ease-in-out;
    animation: loadingWrap1 1.5s infinite ease-in-out
}

#loadingWrap1 span:nth-child(2) {
    left: 11px;
    -webkit-animation-delay: .2s;
    -moz-animation-delay: .2s;
    -ms-animation-delay: .2s;
    -o-animation-delay: .2s;
    animation-delay: .2s
}

#loadingWrap1 span:nth-child(3) {
    left: 22px;
    -webkit-animation-delay: .4s;
    -moz-animation-delay: .4s;
    -ms-animation-delay: .4s;
    -o-animation-delay: .4s;
    animation-delay: .4s
}

#loadingWrap1 span:nth-child(4) {
    left: 33px;
    -webkit-animation-delay: .6s;
    -moz-animation-delay: .6s;
    -ms-animation-delay: .6s;
    -o-animation-delay: .6s;
    animation-delay: .6s
}

#loadingWrap1 span:nth-child(5) {
    left: 44px;
    -webkit-animation-delay: .8s;
    -moz-animation-delay: .8s;
    -ms-animation-delay: .8s;
    -o-animation-delay: .8s;
    animation-delay: .8s
}

@-webkit-keyframes loadingWrap1 {
    0% {
        height: 5px;
        -webkit-transform: translateY(0px);
        background: #9b59b6
    }

    25% {
        height: 30px;
        -webkit-transform: translateY(15px);
        background: #3498db
    }

    50% {
        height: 5px;
        -webkit-transform: translateY(0px);
        background: #9b59b6
    }

    100% {
        height: 5px;
        -webkit-transform: translateY(0px);
        background: #9b59b6
    }
}

@-moz-keyframes loadingWrap1 {
    0% {
        height: 5px;
        -moz-transform: translateY(0px);
        background: #9b59b6
    }

    25% {
        height: 30px;
        -moz-transform: translateY(15px);
        background: #3498db
    }

    50% {
        height: 5px;
        -moz-transform: translateY(0px);
        background: #9b59b6
    }

    100% {
        height: 5px;
        -moz-transform: translateY(0px);
        background: #9b59b6
    }
}

@-ms-keyframes loadingWrap1 {
    0% {
        height: 5px;
        -ms-transform: translateY(0px);
        background: #9b59b6
    }

    25% {
        height: 30px;
        -ms-transform: translateY(15px);
        background: #3498db
    }

    50% {
        height: 5px;
        -ms-transform: translateY(0px);
        background: #9b59b6
    }

    100% {
        height: 5px;
        -ms-transform: translateY(0px);
        background: #9b59b6
    }
}

@keyframes loadingWrap1 {
    0% {
        height: 5px;
        transform: translateY(0px);
        background: #9b59b6
    }

    25% {
        height: 30px;
        transform: translateY(15px);
        background: #3498db
    }

    50% {
        height: 5px;
        transform: translateY(0px);
        background: #9b59b6
    }

    100% {
        height: 5px;
        transform: translateY(0px);
        background: #9b59b6
    }
}

 2、

<div id="loadingWrap2">
    <span></span>
    <span></span>
    <span></span>
    <span></span>
</div>

#loadingWrap2 {
    position: relative;
    left: 50%;
     40px;
    height: 40px
}

#loadingWrap2 span {
    display: block;
    bottom: 0;
     20px;
    height: 20px;
    background: #9b59b6;
    position: absolute
}

#loadingWrap2 span:nth-child(1) {
    -webkit-animation: loadingWrap2_1 1.5s infinite ease-in-out;
    -moz-animation: loadingWrap2_1 1.5s infinite ease-in-out;
    -ms-animation: loadingWrap2_1 1.5s infinite ease-in-out;
    animation: loadingWrap2_1 1.5s infinite ease-in-out
}

#loadingWrap2 span:nth-child(2) {
    left: 20px;
    -webkit-animation: loadingWrap2_2 1.5s infinite ease-in-out;
    -moz-animation: loadingWrap2_2 1.5s infinite ease-in-out;
    -ms-animation: loadingWrap2_2 1.5s infinite ease-in-out;
    animation: loadingWrap2_2 1.5s infinite ease-in-out
}

#loadingWrap2 span:nth-child(3) {
    top: 0;
    -webkit-animation: loadingWrap2_3 1.5s infinite ease-in-out;
    -moz-animation: loadingWrap2_3 1.5s infinite ease-in-out;
    -ms-animation: loadingWrap2_3 1.5s infinite ease-in-out;
    animation: loadingWrap2_3 1.5s infinite ease-in-out
}

#loadingWrap2 span:nth-child(4) {
    top: 0;
    left: 20px;
    -webkit-animation: loadingWrap2_4 1.5s infinite ease-in-out;
    -moz-animation: loadingWrap2_4 1.5s infinite ease-in-out;
    -ms-animation: loadingWrap2_4 1.5s infinite ease-in-out;
    animation: loadingWrap2_4 1.5s infinite ease-in-out
}

@-webkit-keyframes loadingWrap2_1 {
    0% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -webkit-transform: translateX(-20px) translateY(-10px) rotate(-180deg);
        border-radius: 20px;
        background: #3498db
    }

    80% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }

    100% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }
}

@-webkit-keyframes loadingWrap2_2 {
    0% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -webkit-transform: translateX(20px) translateY(-10px) rotate(180deg);
        border-radius: 20px;
        background: #f1c40f
    }

    80% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }

    100% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }
}

@-webkit-keyframes loadingWrap2_3 {
    0% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -webkit-transform: translateX(-20px) translateY(10px) rotate(-180deg);
        border-radius: 20px;
        background: #2ecc71
    }

    80% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }

    100% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }
}

@-webkit-keyframes loadingWrap2_4 {
    0% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -webkit-transform: translateX(20px) translateY(10px) rotate(180deg);
        border-radius: 20px;
        background: #e74c3c
    }

    80% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }

    100% {
        -webkit-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }
}

@-moz-keyframes loadingWrap2_1 {
    0% {
        -moz-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -moz-transform: translateX(-20px) translateY(-10px) rotate(-180deg);
        border-radius: 20px;
        background: #3498db
    }

    80% {
        -moz-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }

    100% {
        -moz-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }
}

@-moz-keyframes loadingWrap2_2 {
    0% {
        -moz-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -moz-transform: translateX(20px) translateY(-10px) rotate(180deg);
        border-radius: 20px;
        background: #f1c40f
    }

    80% {
        -moz-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }

    100% {
        -moz-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }
}

@-moz-keyframes loadingWrap2_3 {
    0% {
        -moz-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -moz-transform: translateX(-20px) translateY(10px) rotate(-180deg);
        border-radius: 20px;
        background: #2ecc71
    }

    80% {
        -moz-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }

    100% {
        -moz-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }
}

@-moz-keyframes loadingWrap2_4 {
    0% {
        -moz-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -moz-transform: translateX(20px) translateY(10px) rotate(180deg);
        border-radius: 20px;
        background: #e74c3c
    }

    80% {
        -moz-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }

    100% {
        -moz-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }
}

@-ms-keyframes loadingWrap2_1 {
    0% {
        -ms-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -ms-transform: translateX(-20px) translateY(-10px) rotate(-180deg);
        border-radius: 20px;
        background: #3498db
    }

    80% {
        -ms-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }

    100% {
        -ms-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }
}

@-ms-keyframes loadingWrap2_2 {
    0% {
        -ms-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -ms-transform: translateX(20px) translateY(-10px) rotate(180deg);
        border-radius: 20px;
        background: #f1c40f
    }

    80% {
        -ms-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }

    100% {
        -ms-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }
}

@-ms-keyframes loadingWrap2_3 {
    0% {
        -ms-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -ms-transform: translateX(-20px) translateY(10px) rotate(-180deg);
        border-radius: 20px;
        background: #2ecc71
    }

    80% {
        -ms-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }

    100% {
        -ms-transform: translateX(0px) translateY(0px) rotate(-360deg);
        border-radius: 0
    }
}

@-ms-keyframes loadingWrap2_4 {
    0% {
        -ms-transform: translateX(0px) translateY(0px) rotate(0deg);
        border-radius: 0
    }

    50% {
        -ms-transform: translateX(20px) translateY(10px) rotate(180deg);
        border-radius: 20px;
        background: #e74c3c
    }

    80% {
        -ms-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }

    100% {
        -ms-transform: translateX(0px) translateY(0px) rotate(360deg);
        border-radius: 0
    }
}

@-keyframes loadingWrap2_1 {
    0% {
        -transform: translateX(0px)translateY(0px)rotate(0deg);
        border-radius: 0px;
    }

    50% {
        -transform: translateX(-20px)translateY(-10px)rotate(-180deg);
        border-radius: 20px;
        background: #3498db;
    }

    80% {
        -transform: translateX(0px)translateY(0px)rotate(-360deg);
        border-radius: 0px;
    }

    100% {
        -transform: translateX(0px)translateY(0px)rotate(-360deg);
        border-radius: 0px;
    }
}

@-keyframes loadingWrap2_2 {
    0% {
        -transform: translateX(0px)translateY(0px)rotate(0deg);
        border-radius: 0px;
    }

    50% {
        -transform: translateX(20px)translateY(-10px)rotate(180deg);
        border-radius: 20px;
        background: #f1c40f;
    }

    80% {
        -transform: translateX(0px)translateY(0px)rotate(360deg);
        border-radius: 0px;
    }

    100% {
        -transform: translateX(0px)translateY(0px)rotate(360deg);
        border-radius: 0px;
    }
}

@-keyframes loadingWrap2_3 {
    0% {
        -transform: translateX(0px)translateY(0px)rotate(0deg);
        border-radius: 0px;
    }

    50% {
        -transform: translateX(-20px)translateY(10px)rotate(-180deg);
        border-radius: 20px;
        background: #2ecc71;
    }

    80% {
        -transform: translateX(0px)translateY(0px)rotate(-360deg);
        border-radius: 0px;
    }

    100% {
        -transform: translateX(0px)translateY(0px)rotate(-360deg);
        border-radius: 0px;
    }
}

@-keyframes loadingWrap2_4 {
    0% {
        -transform: translateX(0px)translateY(0px)rotate(0deg);
        border-radius: 0px;
    }

    50% {
        -transform: translateX(20px)translateY(10px)rotate(180deg);
        border-radius: 20px;
        background: #e74c3c;
    }

    80% {
        -transform: translateX(0px)translateY(0px)rotate(360deg);
        border-radius: 0px;
    }

    100% {
        -transform: translateX(0px)translateY(0px)rotate(360deg);
        border-radius: 0px;
    }
}

3、

<div id="loadingWrap3"></div>

#loadingWrap3 {
    position: relative
}

#loadingWrap3:before {
     20px;
    height: 20px;
    border-radius: 20px;
    background: blue;
    content: '';
    position: absolute;
    background: #9b59b6;
    -webkit-animation: loadingWrap3_before 1.5s infinite ease-in-out;
    -moz-animation: loadingWrap3_before 1.5s infinite ease-in-out;
    -ms-animation: loadingWrap3_before 1.5s infinite ease-in-out;
    animation: loadingWrap3_before 1.5s infinite ease-in-out
}

#loadingWrap3:after {
     20px;
    height: 20px;
    border-radius: 20px;
    background: blue;
    content: '';
    position: absolute;
    background: #2ecc71;
    left: 22px;
    -webkit-animation: loadingWrap3_after 1.5s infinite ease-in-out;
    -moz-animation: loadingWrap3_after 1.5s infinite ease-in-out;
    -ms-animation: loadingWrap3_after 1.5s infinite ease-in-out;
    animation: loadingWrap3_after 1.5s infinite ease-in-out
}

@-webkit-keyframes loadingWrap3_before {
    0% {
        -webkit-transform: translateX(0px) rotate(0deg)
    }

    50% {
        -webkit-transform: translateX(50px) scale(1.2) rotate(260deg);
        background: #2ecc71;
        border-radius: 0
    }

    100% {
        -webkit-transform: translateX(0px) rotate(0deg)
    }
}

@-webkit-keyframes loadingWrap3_after {
    0% {
        -webkit-transform: translateX(0px)
    }

    50% {
        -webkit-transform: translateX(-50px) scale(1.2) rotate(-260deg);
        background: #9b59b6;
        border-radius: 0
    }

    100% {
        -webkit-transform: translateX(0px)
    }
}

@-moz-keyframes loadingWrap3_before {
    0% {
        -moz-transform: translateX(0px) rotate(0deg)
    }

    50% {
        -moz-transform: translateX(50px) scale(1.2) rotate(260deg);
        background: #2ecc71;
        border-radius: 0
    }

    100% {
        -moz-transform: translateX(0px) rotate(0deg)
    }
}

@-moz-keyframes loadingWrap3_after {
    0% {
        -moz-transform: translateX(0px)
    }

    50% {
        -moz-transform: translateX(-50px) scale(1.2) rotate(-260deg);
        background: #9b59b6;
        border-radius: 0
    }

    100% {
        -moz-transform: translateX(0px)
    }
}

@-ms-keyframes loadingWrap3_before {
    0% {
        -ms-transform: translateX(0px) rotate(0deg)
    }

    50% {
        -ms-transform: translateX(50px) scale(1.2) rotate(260deg);
        background: #2ecc71;
        border-radius: 0
    }

    100% {
        -ms-transform: translateX(0px) rotate(0deg)
    }
}

@-ms-keyframes loadingWrap3_after {
    0% {
        -ms-transform: translateX(0px)
    }

    50% {
        -ms-transform: translateX(-50px) scale(1.2) rotate(-260deg);
        background: #9b59b6;
        border-radius: 0
    }

    100% {
        -ms-transform: translateX(0px)
    }
}

@keyframes loadingWrap3_before {
    0% {
        transform: translateX(0px) rotate(0deg)
    }

    50% {
        transform: translateX(50px) scale(1.2) rotate(260deg);
        background: #2ecc71;
        border-radius: 0
    }

    100% {
        transform: translateX(0px) rotate(0deg)
    }
}

@keyframes loadingWrap3_after {
    0% {
        transform: translateX(0px)
    }

    50% {
        transform: translateX(-50px) scale(1.2) rotate(-260deg);
        background: #9b59b6;
        border-radius: 0
    }

    100% {
        transform: translateX(0px)
    }
}

4、

<div id="loadingWrap4">
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    <span></span>
</div>

#loadingWrap4 {
    position: relative
}

#loadingWrap4 span {
    position: absolute;
     20px;
    height: 20px;
    background: #3498db;
    opacity: .5;
    border-radius: 20px;
    -webkit-animation: loadingWrap4 1s infinite ease-in-out;
    -moz-animation: loadingWrap4 1s infinite ease-in-out;
    -ms-animation: loadingWrap4 1s infinite ease-in-out;
    -animation: loadingWrap4 1s infinite ease-in-out
}

#loadingWrap4 span:nth-child(2) {
    left:20px;
    -webkit-animation-delay: .2s;
    -moz-animation-delay: .2s;
    -ms-animation-delay: .2s;
    animation-delay: .2s
}

#loadingWrap4 span:nth-child(3) {
    left:40px;
    -webkit-animation-delay: .4s;
    -moz-animation-delay: .4s;
    -ms-animation-delay: .4s;
    animation-delay: .4s
}

#loadingWrap4 span:nth-child(4) {
    left:60px;
    -webkit-animation-delay: .6s;
    -moz-animation-delay: .6s;
    -ms-animation-delay: .6s;
    animation-delay: .6s
}

#loadingWrap4 span:nth-child(5) {
    left:80px;
    -webkit-animation-delay: .8s;
    -moz-animation-delay: .8s;
    -ms-animation-delay: .8s;
    animation-delay: .8s
}

@-webkit-keyframes loadingWrap4 {
    0% {
        opacity: .3;
        -webkit-transform: translateY(0px);
        box-shadow: 0 0 3px rgba(0,0,0,.1)
    }

    50% {
        opacity: 1;
        -webkit-transform: translateY(-10px);
        background: #f1c40f;
        box-shadow: 0 20px 3px rgba(0,0,0,.05)
    }

    100% {
        opacity: .3;
        -webkit-transform: translateY(0px);
        box-shadow: 0 0 3px rgba(0,0,0,.1)
    }
}

@-moz-keyframes loadingWrap4 {
    0% {
        opacity: .3;
        -moz-transform: translateY(0px);
        box-shadow: 0 0 3px rgba(0,0,0,.1)
    }

    50% {
        opacity: 1;
        -moz-transform: translateY(-10px);
        background: #f1c40f;
        box-shadow: 0 20px 3px rgba(0,0,0,.05)
    }

    100% {
        opacity: .3;
        -moz-transform: translateY(0px);
        box-shadow: 0 0 3px rgba(0,0,0,.1)
    }
}

@-ms-keyframes loadingWrap4 {
    0% {
        opacity: .3;
        -ms-transform: translateY(0px);
        box-shadow: 0 0 3px rgba(0,0,0,.1)
    }

    50% {
        opacity: 1;
        -ms-transform: translateY(-10px);
        background: #f1c40f;
        box-shadow: 0 20px 3px rgba(0,0,0,.05)
    }

    100% {
        opacity: .3;
        -ms-transform: translateY(0px);
        box-shadow: 0 0 3px rgba(0,0,0,.1)
    }
}

@keyframes loadingWrap4 {
    0% {
        opacity: .3;
        transform: translateY(0px);
        box-shadow: 0 0 3px rgba(0,0,0,.1)
    }

    50% {
        opacity: 1;
        transform: translateY(-10px);
        background: #f1c40f;
        box-shadow: 0 20px 3px rgba(0,0,0,.05)
    }

    100% {
        opacity: .3;
        transform: translateY(0px);
        box-shadow: 0 0 3px rgba(0,0,0,.1)
    }
}

5、

<div id="loadingWrap5"></div>

#loadingWrap5 {
    position: relative;
     30px;
    height: 30px;
    background: #3498db;
    border-radius: 50px;
    -webkit-animation: loadingWrap5 1.5s infinite linear;
    -moz-animation: loadingWrap5 1.5s infinite linear;
    -ms-animation: loadingWrap5 1.5s infinite linear;
    animation: loadingWrap5 1.5s infinite linear
}

#loadingWrap5:after {
    position: absolute;
     50px;
    height: 50px;
    border-top: 10px solid #9b59b6;
    border-bottom: 10px solid #9b59b6;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent;
    border-radius: 50px;
    content: '';
    top: -20px;
    left: -20px;
    -webkit-animation: loadingWrap5_after 1.5s infinite linear;
    -moz-animation: loadingWrap5_after 1.5s infinite linear;
    -ms-animation: loadingWrap5_after 1.5s infinite linear;
    animation: loadingWrap5_after 1.5s infinite linear
}

@-webkit-keyframes loadingWrap5 {
    0% {
        -webkit-transform: rotate(0deg)
    }

    50% {
        -webkit-transform: rotate(180deg);
        background: #2ecc71
    }

    100% {
        -webkit-transform: rotate(360deg)
    }
}

@-webkit-keyframes loadingWrap5_after {
    0% {
        border-top: 10px solid #9b59b6;
        border-bottom: 10px solid #9b59b6
    }

    50% {
        border-top: 10px solid #3498db;
        border-bottom: 10px solid #3498db
    }

    100% {
        border-top: 10px solid #9b59b6;
        border-bottom: 10px solid #9b59b6
    }
}

@-moz-keyframes loadingWrap5 {
    0% {
        -moz-transform: rotate(0deg)
    }

    50% {
        -moz-transform: rotate(180deg);
        background: #2ecc71
    }

    100% {
        -moz-transform: rotate(360deg)
    }
}

@-moz-keyframes loadingWrap5_after {
    0% {
        border-top: 10px solid #9b59b6;
        border-bottom: 10px solid #9b59b6
    }

    50% {
        border-top: 10px solid #3498db;
        border-bottom: 10px solid #3498db
    }

    100% {
        border-top: 10px solid #9b59b6;
        border-bottom: 10px solid #9b59b6
    }
}

@-ms-keyframes loadingWrap5 {
    0% {
        -ms-transform: rotate(0deg)
    }

    50% {
        -ms-transform: rotate(180deg);
        background: #2ecc71
    }

    100% {
        -ms-transform: rotate(360deg)
    }
}

@-ms-keyframes loadingWrap5_after {
    0% {
        border-top: 10px solid #9b59b6;
        border-bottom: 10px solid #9b59b6
    }

    50% {
        border-top: 10px solid #3498db;
        border-bottom: 10px solid #3498db
    }

    100% {
        border-top: 10px solid #9b59b6;
        border-bottom: 10px solid #9b59b6
    }
}

@keyframes loadingWrap5 {
    0% {
        transform: rotate(0deg)
    }

    50% {
        transform: rotate(180deg);
        background: #2ecc71
    }

    100% {
        transform: rotate(360deg)
    }
}

@keyframes loadingWrap5_after {
    0% {
        border-top: 10px solid #9b59b6;
        border-bottom: 10px solid #9b59b6
    }

    50% {
        border-top: 10px solid #3498db;
        border-bottom: 10px solid #3498db
    }

    100% {
        border-top: 10px solid #9b59b6;
        border-bottom: 10px solid #9b59b6
    }
}

6、

<div id="loadingWrap6">
    <span></span>
    <span></span>
    <span></span>
    <span></span>
</div>

#loadingWrap6 {
    position: relative;
     42px;
    height: 42px;
    -webkit-animation: loadingWrap6 5s infinite linear;
    -moz-animation: loadingWrap6 5s infinite linear;
    -ms-animation: loadingWrap6 5s infinite linear;
    animation: loadingWrap6 5s infinite linear
}

#loadingWrap6 span {
     20px;
    height: 20px;
    position: absolute;
    background: red;
    display: block;
    -webkit-animation: loadingWrap6_span 1s infinite linear;
    -moz-animation: loadingWrap6_span 1s infinite linear;
    -ms-animation: loadingWrap6_span 1s infinite linear;
    animation: loadingWrap6_span 1s infinite linear
}

#loadingWrap6 span:nth-child(1) {
    background:#2ecc71
}

#loadingWrap6 span:nth-child(2) {
    left:22px;
    background: #9b59b6;
    -webkit-animation-delay: .2s;
    -moz-animation-delay: .2s;
    -ms-animation-delay: .2s;
    animation-delay: .2s
}

#loadingWrap6 span:nth-child(3) {
    top:22px;
    background: #3498db;
    -webkit-animation-delay: .4s;
    -moz-animation-delay: .4s;
    -ms-animation-delay: .4s;
    animation-delay: .4s
}

#loadingWrap6 span:nth-child(4) {
    top:22px;
    left: 22px;
    background: #f1c40f;
    -webkit-animation-delay: .6s;
    -moz-animation-delay: .6s;
    -ms-animation-delay: .6s;
    animation-delay: .6s
}

@-webkit-keyframes loadingWrap6 {
    from {
        -webkit-transform: rotate(0deg)
    }

    to {
        -webkit-transform: rotate(360deg)
    }
}

@-webkit-keyframes loadingWrap6_span {
    0% {
        -webkit-transform: scale(1)
    }

    50% {
        -webkit-transform: scale(.5)
    }

    100% {
        -webkit-transform: scale(1)
    }
}

@-moz-keyframes loadingWrap6 {
    from {
        -moz-transform: rotate(0deg)
    }

    to {
        -moz-transform: rotate(360deg)
    }
}

@-moz-keyframes loadingWrap6_span {
    0% {
        -moz-transform: scale(1)
    }

    50% {
        -moz-transform: scale(.5)
    }

    100% {
        -moz-transform: scale(1)
    }
}

@-ms-keyframes loadingWrap6 {
    from {
        -ms-transform: rotate(0deg)
    }

    to {
        -ms-transform: rotate(360deg)
    }
}

@-ms-keyframes loadingWrap6_span {
    0% {
        -ms-transform: scale(1)
    }

    50% {
        -ms-transform: scale(.5)
    }

    100% {
        -ms-transform: scale(1)
    }
}

@-ms-keyframes loadingWrap6 {
    from {
        -ms-transform: rotate(0deg)
    }

    to {
        -ms-transform: rotate(360deg)
    }
}

@keyframes loadingWrap6_span {
    0% {
        transform: scale(1)
    }

    50% {
        transform: scale(.5)
    }

    100% {
        transform: scale(1)
    }
}