CSS Polaroid 宝丽来相机

            
            $background: #b5e8fb;
$grey: #34495e;
$dark-grey: #212f3d;
$red: #cb214a;
$duration: 5s;

html,
body {
    height: 100%;
    width: 100%;
    overflow: hidden;
    padding: 0;
    margin:0;
}
body {
    background: $background;
    align-items: center;
    justify-content: center;
    height: 100vh;
    width: 100vw;
}
html {
    box-sizing: border-box;
}
*,
*:before,
*:after {
    box-sizing: inherit;
}
* {
    position: absolute;
}
.polaroid {
    width: 420px;
    height: 280px;
    transform: translate(-50%, -50%);
    top: 50%;
    left: 50%;
    background-color: #fff;
    border-radius: 40px;
    box-shadow: 10px 10px darken($background, 5%);
}

*:before,
*:after {
    content: "";
    position: absolute;
}

.polaroid-body {
    background-color: #fff;
    border-radius: 40px;
    width: 100%;
    height: 100%;
    box-shadow: 10px 10px darken($background, 5%);

}
.flash {
    width: 24%;
    height: 15%;
    background-color: $grey;
    border-radius: 8px;
    top: -12%;
    left: 38%;
    &:after {
        width: 36%;
        height: 60%;
        background-color: lighten($grey, 30%);
        border-radius: 5px;
        top: 10%;
        left: 32%;
    }

}
.button {
    background-color: $red;
    border-radius: 10px;
    width: 10%;
    height: 10%;
    top: -4%;
    left: 14%;
    animation: button $duration linear infinite;
}
.blinker {
    width: 15px;
    height: 15px;
    top: 15%;
    left:15%;
    border-radius: 15px;
    background-color: $dark-grey;
    animation: blinker $duration linear infinite;
}
.zoom {
    border-radius: 50%;
    width: 50%;
    height: 75%;
    background: $dark-grey;
    left: 25%;
    top: 12.5%;
    box-shadow: 10px 10px rgba(0, 0, 0, 0.1);
    overflow: hidden;
    border: 5px solid $grey;
    animation: zoom $duration linear infinite;
    &:before {
        width: 80%;
        height: 80%;
        top: 10%;
        left: 10%;
        border-radius: 50%;
        background: #2c3e50;
        border: 10px solid $grey;
    }
    &:after {
        width: 40%;
        height: 40%;
        top: 30%;
        left: 30%;
        border-radius: 50%;
        background: $dark-grey;
    }
}
.reflections {
    background-color: #fff;
    opacity: 0.3;
    width: 100%;
    height: 100%;
    left: -35%;
    top: -35%;
    z-index: 99;
    transform: rotate(-45deg);
    &:after {
        background-color: #fff;
        width: 20px;
        height: 20px;
        border-radius: 50%;
        left: 50%;
        top: 105%;
        opacity: 0.5;
    }
}

.stripes {
    right: 0;
    top: 40%;
    height: 7px;
    width: 50%;
    box-shadow: 0px 7px rgba(214, 0, 121, 1), 0px 14px rgba(230, 141, 21, 1), 0px 21px rgba(254, 200, 3, 1), 0px 28px rgba(221, 229, 107, 1), 0px 35px rgba(62, 162, 48, 1), 0px 42px rgba(1, 136, 194, 1);
}
.flashlight {
    position:fixed;
    width:100%;
    height:100%;
    top:0;
    left:0;
    background:rgba(white, 0.7);
    transition:all ease 0.2s;
    opacity:0;
    animation: flashlight $duration linear infinite;
}

@keyframes button {
    5%, 15% {
        transform:translateY(0);
    }
    10% {
        transform:translateY(10px);
    }
}

@keyframes flashlight {
    56% {
        opacity:1;
    }
    55%, 65% {
        opacity:0;
    }
}

@keyframes zoom {
    20%, 32%  {
        transform:rotate(0deg);
    }
    26% {
        transform:rotate(20deg);
    }
}

@keyframes blinker {
    32%, 37%, 39%, 43%, 45%, 50% {
        background-color: $dark-grey;
    }
    34%, 36%, 40%, 42%, 46%, 48% {
        background-color: $red
    }
}