* {
    box-sizing: border-box
}

html,body {
    margin: 0;
    padding: 0;
    position: relative;
    width: 100%;
    height: 100%;
    background-color: #151515
}

.page {
    height: 100%;
    display: -webkit-flex;
    display: flex;
    -webkit-align-items: center;
    align-items: center;
    -moz-box-align: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
    -moz-box-pack: center;
    -ms-flex-pack: center
}

.folder {
    background-color: #e6e6e6;
    position: relative;
    width: 92px;
    height: 64px;
    display: block;
    border-top-right-radius: 8px;
    border-bottom-right-radius: 8px;
    border-bottom-left-radius: 8px
}

.folder-tab {
    position: absolute;
    height: 11px;
    left: 0;
    bottom: calc(100% - 1px);
    display: block;
    width: 40%;
    border-top-left-radius: 8px;
    background-color: inherit
}

.folder-tab:after {
    content: '';
    position: absolute;
    display: block;
    top: 0;
    left: calc(100% - 10px);
    border-bottom: 11px solid #e6e6e6;
    border-left: 10px solid transparent;
    border-right: 10px solid transparent
}

.folder-icn {
    padding-top: 12px;
    width: 100%;
    height: 100%;
    display: block
}

.downloading {
    width: 30px;
    height: 32px;
    margin: 0 auto;
    position: relative;
    overflow: hidden
}

.custom-arrow {
    width: 14px;
    height: 14px;
    position: absolute;
    top: 0;
    left: 50%;
    margin-left: -7px;
    background-color: #151515;
    -webkit-animation-name: downloading;
    -webkit-animation-duration: 1.5s;
    -webkit-animation-iteration-count: infinite;
    animation-name: downloading;
    animation-duration: 1.5s;
    animation-iteration-count: infinite
}

.custom-arrow:after {
    content: '';
    position: absolute;
    display: block;
    top: calc(100% - 1px);
    left: -9px;
    border-top: 15px solid #151515;
    border-left: 16px solid transparent;
    border-right: 16px solid transparent
}

.bar {
    width: 30px;
    height: 4px;
    background-color: #151515;
    margin: 0 auto
}

@-webkit-keyframes downloading {
    0% {
        top: 0;
        opacity: 1
    }

    50% {
        top: 110%;
        opacity: 0
    }

    52% {
        top: -110%;
        opacity: 0
    }

    100% {
        top: 0;
        opacity: 1
    }
}

@keyframes downloading {
    0% {
        top: 0;
        opacity: 1
    }

    50% {
        top: 110%;
        opacity: 0
    }

    52% {
        top: -110%;
        opacity: 0
    }

    100% {
        top: 0;
        opacity: 1
    }
}