body{
    background: lightcyan;
    font-family: 'Times New Roman', Times, serif
h1{
    font-size: 50px;
}
h2{
    font-size: 35px;
}
h3{
    font-size: 30px;
}
.opening{
    font-size: 30px;
}
.development-methods{
    font-size: 25px;
}
.development_imgs{
    height: 30;
    width: 40;
}
.steps{
    color: darkred;
    font-size: 20px;
}
p{
    font-size: 25px;
}