body {
    text-align: center;
    margin: 0 auto;
    width: 800px;
    font-family: sans-serif;
}
.smiley {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: yellow;
    position: absolute;
    top: 325px;
    right: 800px;
}
.eyebrow {
    width: 75px;
    height: 25px;
    background: black;
}
.lefft {
    position: absolute;
    top: 40%;
    right: 960px;
    animation: lefft 5s infinite;
}
.righht {
    position: absolute;
    top: 40%;
    right: 860px;
    animation: righht 5s infinite;
}
.eye {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: black;
}
.left {
    position: absolute;
    top: 45%;
    right: 970px;      
}
.right {
    position: absolute;
    top: 45%;
    right: 870px;   
}
.mouth {
    width: 150px;
    height: 25px;
    background: red;
    position: absolute;
    top: 55%;
    right: 870px;
    animation: mouth 5s infinite;
}

@keyframes lefft {
    0% {
        transform: rotate(45deg);
    }
    50% {
        transform: rotate(-45deg);
    }
    100% {
        transform: rotate(45deg);
    }
}
@keyframes righht {
    0% {
        transform: rotate(-45deg);
    }
    50% {
        transform: rotate(45deg);
    }
    100% {
        transform: rotate(-45deg);
    }
}
@keyframes mouth {
    0% {
        width: 150px;
        height: 25px;
    }
    50% {
        height: 75px;
        border-bottom-left-radius: 50%;
        border-bottom-right-radius: 50%;
    }
    100% {
        height: 25px;
        border-bottom-left-radius: 0%;
        border-bottom-right-radius: 0%;
    }
}