styles.css

body{
    background-color: aliceblue;
    font-family: sans-serif;
    text-align: center;
    margin: auto;
}

.head {
    margin-top: 10px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    width: 750px;
    font-size: larger;
    font-weight: 500;
}

.about{
    display: flex;
    flex-direction: column;
}

.mail {
    font-size: large;
    margin-top: -10px;
}

.box{
    width: 300px;
    height: 300px;
    display: flex;
    margin: auto;
}

.image{
    width: 100%;
}
.write-up {
    margin-top: 50px;
    text-align: left;
    margin-left: 50px;
    margin-right: 50px;
}

.li{
    
    line-height: 20px;
}
li {
    margin-top: 15pxpx;
    font-size: large;
    font-weight: bold;
}

.foot {
    margin-top: 70px;
    margin-left: auto;
    margin-right: auto;
    margin-bottom: auto;
    padding: 5px;
}
p{
    font-size: large;
}
@media (max-width: 768px) {
    body {
        padding: 20px;
        background-color: lightblue;
    }
    .head{
        font-size: small;
        font-weight: 100;
        width: auto;
    }
    .write-up {
        margin-top: 20px;
        margin: 10px;
    }
    .box {
        width: 100px;
        height: 100px;
        margin: auto;
    }
}