CSS的学习

p:first-child{
            font-size: 200px;
            font-weight: bold;
            font-family: SimSun-ExtB;
            color: #00bcd5;
            font-style: italic;
            text-decoration: underline;
        }

        img{
            border: 5px solid red;
            width: 100px;
            height: 100px;
        }