/* ===== Infinite rotation animation ===== */

.overlay {
    display: none;
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    z-index: 9999;
}

    .overlay .opacity {
        background-color: #2C3A3F;
        filter: alpha(opacity=80);
        opacity: 0.8;
        width: 100%;
        height: 100%;
        position: relative;
    }

.spin {
    display: inline-block;
    -webkit-animation: rotation 2s linear infinite;
    -moz-animation: rotation 1s ease infinite;
    -ms-animation: rotation 1s ease infinite;
    -o-animation: rotation 1s ease infinite;
    animation: rotation 1s ease infinite;
}

.overlay .spin {
    font-size: 16px;
    color: #fff;
    display: inline-block;
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
}

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

    100% {
        -webkit-transform: rotate(359deg);
    }
}

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

    100% {
        -moz-transform: rotate(359deg);
    }
}

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

    100% {
        -ms-transform: rotate(359deg);
    }
}

@-o-keyframes indicator {
    0% {
        -o-transform: rotate(0deg);
    }

    100% {
        -o-transform: rotate(359deg);
    }
}

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

    100% {
        transform: rotate(359deg);
    }
}

.center {
    display: flex;
    justify-content: center;
    align-items: center;
}

.lds-roller {
    display: inline-block;
    position: relative;
    width: 80px;
    height: 80px;
}

    .lds-roller div {
        animation: lds-roller 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
        transform-origin: 40px 40px;
    }

        .lds-roller div:after {
            content: " ";
            display: block;
            position: absolute;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: #fff;
            margin: -4px 0 0 -4px;
        }

        .lds-roller div:nth-child(1) {
            animation-delay: -0.036s;
        }

            .lds-roller div:nth-child(1):after {
                top: 63px;
                left: 63px;
            }

        .lds-roller div:nth-child(2) {
            animation-delay: -0.072s;
        }

            .lds-roller div:nth-child(2):after {
                top: 68px;
                left: 56px;
            }

        .lds-roller div:nth-child(3) {
            animation-delay: -0.108s;
        }

            .lds-roller div:nth-child(3):after {
                top: 71px;
                left: 48px;
            }

        .lds-roller div:nth-child(4) {
            animation-delay: -0.144s;
        }

            .lds-roller div:nth-child(4):after {
                top: 72px;
                left: 40px;
            }

        .lds-roller div:nth-child(5) {
            animation-delay: -0.18s;
        }

            .lds-roller div:nth-child(5):after {
                top: 71px;
                left: 32px;
            }

        .lds-roller div:nth-child(6) {
            animation-delay: -0.216s;
        }

            .lds-roller div:nth-child(6):after {
                top: 68px;
                left: 24px;
            }

        .lds-roller div:nth-child(7) {
            animation-delay: -0.252s;
        }

            .lds-roller div:nth-child(7):after {
                top: 63px;
                left: 17px;
            }

        .lds-roller div:nth-child(8) {
            animation-delay: -0.288s;
        }

            .lds-roller div:nth-child(8):after {
                top: 56px;
                left: 12px;
            }

@keyframes lds-roller {
    0% {
        transform: rotate(0deg);
    }

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