#convious-spinner {
    height: 400px;
    text-align: center;
    background-color: rgb(229, 235, 237);
    position: relative;
}

.convious-spinner {
    width: 70px;
    height: 70px;
    display: block;
    margin: 0 auto;
    position: relative;
    top: 50%;
    -ms-transform: translateY(-50%);
    transform: translateY(-50%);
}
.convious-spinner div {
    position: absolute;
    width: 100%;
    height: 100%;
    position: absolute;
    left: 0;
    top: 0;
}

.convious-spinner div:before {
    content: '';
    display: block;
    margin: 0 auto;
    width: 15%;
    height: 15%;
    background: #999;
    border-radius: 100%;
    animation: convious-spinner 1.2s infinite ease-in-out both;
}

.convious-spinner div:nth-child(2) {
    -webkit-transform: rotate(30deg);
    -ms-transform: rotate(30deg);
    transform: rotate(30deg);
}
.convious-spinner div:nth-child(2):before {
    -webkit-animation-delay: -1.1s;
    animation-delay: -1.1s;
}

.convious-spinner div:nth-child(3) {
    -webkit-transform: rotate(60deg);
    -ms-transform: rotate(60deg);
    transform: rotate(60deg);
}
.convious-spinner div:nth-child(3):before {
    -webkit-animation-delay: -1s;
    animation-delay: -1s;
}

.convious-spinner div:nth-child(4) {
    -webkit-transform: rotate(90deg);
    -ms-transform: rotate(90deg);
    transform: rotate(90deg);
}
.convious-spinner div:nth-child(4):before {
    -webkit-animation-delay: -0.9s;
    animation-delay: -0.9s;
}

.convious-spinner div:nth-child(5) {
    -webkit-transform: rotate(120deg);
    -ms-transform: rotate(120deg);
    transform: rotate(120deg);
}
.convious-spinner div:nth-child(5):before {
    -webkit-animation-delay: -0.8s;
    animation-delay: -0.8s;
}

.convious-spinner div:nth-child(6) {
    -webkit-transform: rotate(150deg);
    -ms-transform: rotate(150deg);
    transform: rotate(150deg);
}
.convious-spinner div:nth-child(6):before {
    -webkit-animation-delay: -0.7s;
    animation-delay: -0.7s;
}

.convious-spinner div:nth-child(7) {
    -webkit-transform: rotate(180deg);
    -ms-transform: rotate(180deg);
    transform: rotate(180deg);
}
.convious-spinner div:nth-child(7):before {
    -webkit-animation-delay: -0.6s;
    animation-delay: -0.6s;
}

.convious-spinner div:nth-child(8) {
    -webkit-transform: rotate(210deg);
    -ms-transform: rotate(210deg);
    transform: rotate(210deg);
}
.convious-spinner div:nth-child(8):before {
    -webkit-animation-delay: -0.5s;
    animation-delay: -0.5s;
}

.convious-spinner div:nth-child(9) {
    -webkit-transform: rotate(240deg);
    -ms-transform: rotate(240deg);
    transform: rotate(240deg);
}
.convious-spinner div:nth-child(9):before {
    -webkit-animation-delay: -0.4s;
    animation-delay: -0.4s;
}

.convious-spinner div:nth-child(10) {
    -webkit-transform: rotate(270deg);
    -ms-transform: rotate(270deg);
    transform: rotate(270deg);
}
.convious-spinner div:nth-child(10):before {
    -webkit-animation-delay: -0.3s;
    animation-delay: -0.3s;
}

.convious-spinner div:nth-child(11) {
    -webkit-transform: rotate(300deg);
    -ms-transform: rotate(300deg);
    transform: rotate(300deg);
}
.convious-spinner div:nth-child(11):before {
    -webkit-animation-delay: -0.2s;
    animation-delay: -0.2s;
}

.convious-spinner div:nth-child(12) {
    -webkit-transform: rotate(330deg);
    -ms-transform: rotate(330deg);
    transform: rotate(330deg);
}
.convious-spinner div:nth-child(11):before {
    -webkit-animation-delay: -0.1s;
    animation-delay: -0.1s;
}

@keyframes convious-spinner {
    0%,
    39%,
    100% {
        opacity: 0;
    }

    40% {
        opacity: 1;
    }
}