.frame {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    height: 400px;
    margin-top: -200px;
    margin-left: -200px;
    border-radius: 2px;
    box-shadow: 1px 2px 10px 0px rgba(0, 0, 0, 0.3);
    background: #f6e8d7;
    background: radial-gradient(ellipse at center, #f6e8d7 0%, #dabe9b 100%);
    filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#f6e8d7', endColorstr='#dabe9b',GradientType=1 );
    overflow: hidden;
}

.floor {
    position: absolute;
    top: 244px;
    left: 0;
    right: 0;
    bottom: 0;
    background: #232323;
}

.invisible-men {
    -webkit-animation: fade-in .8s ease-out 1s;
    animation: fade-in .8s ease-out 1s;
    -webkit-animation-fill-mode: both;
    animation-fill-mode: both;
}

.leg {
    position: absolute;
    top: 0px;
    left: 147px;
    width: 151px;
    height: 245px;
    -webkit-transform-origin: 50% 0;
    transform-origin: 50% 0;
}

.shoe {
    position: absolute;
    width: 151px;
    height: 128px;
    left: 0;
    bottom: 0;
    background: url("https://100dayscss.com/codepen/doc-martens.svg") center center no-repeat;
    -webkit-transform-origin: 0 95%;
    transform-origin: 0 95%;
}

.left {
    -webkit-animation: leg-swing 2s ease-in-out infinite;
    animation: leg-swing 2s ease-in-out infinite;
}
.left .shoe {
    -webkit-animation: shoe-turn 2s ease-in-out infinite;
    animation: shoe-turn 2s ease-in-out infinite;
}

.right {
    -webkit-animation: leg-swing 2s ease-in-out 1s infinite;
    animation: leg-swing 2s ease-in-out 1s infinite;
}
.right .shoe {
    -webkit-animation: shoe-turn 2s ease-in-out 1s infinite;
    animation: shoe-turn 2s ease-in-out 1s infinite;
}

@-webkit-keyframes leg-swing {
    0%, 100% {
        -webkit-transform: rotate(-22deg);
        transform: rotate(-22deg);
    }
    50% {
        -webkit-transform: rotate(40deg);
        transform: rotate(40deg);
    }
}

@keyframes leg-swing {
    0%, 100% {
        -webkit-transform: rotate(-22deg);
        transform: rotate(-22deg);
    }
    50% {
        -webkit-transform: rotate(40deg);
        transform: rotate(40deg);
    }
}
@-webkit-keyframes shoe-turn {
    0%, 100% {
        -webkit-transform: rotate(-10deg) translateY(-5px) translateX(10px);
        transform: rotate(-10deg) translateY(-5px) translateX(10px);
    }
    25% {
        -webkit-transform: rotate(0deg) translateY(0px) translateX(0);
        transform: rotate(0deg) translateY(0px) translateX(0);
    }
    50% {
        -webkit-transform: rotate(10deg) translateY(-10px) translateX(10px);
        transform: rotate(10deg) translateY(-10px) translateX(10px);
    }
    75% {
        -webkit-transform: rotate(0deg) translateY(-30px) translateX(0);
        transform: rotate(0deg) translateY(-30px) translateX(0);
    }
}
@keyframes shoe-turn {
    0%, 100% {
        -webkit-transform: rotate(-10deg) translateY(-5px) translateX(10px);
        transform: rotate(-10deg) translateY(-5px) translateX(10px);
    }
    25% {
        -webkit-transform: rotate(0deg) translateY(0px) translateX(0);
        transform: rotate(0deg) translateY(0px) translateX(0);
    }
    50% {
        -webkit-transform: rotate(10deg) translateY(-10px) translateX(10px);
        transform: rotate(10deg) translateY(-10px) translateX(10px);
    }
    75% {
        -webkit-transform: rotate(0deg) translateY(-30px) translateX(0);
        transform: rotate(0deg) translateY(-30px) translateX(0);
    }
}
@-webkit-keyframes fade-in {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}
@keyframes fade-in {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}