*{
    padding: 0;
    margin: 0;
}
header{
    background-color: #251907;
    height: 100px;
    width:100%;
    position:relative;
}
h1{
    color: white;
    position:absolute;
    left:80px;
    top:0;
    line-height:100px;
    background-image: url(images/logo200px.png);
    background-repeat: no-repeat;
    background-position: center;
    width: 200px;
    text-indent: -9999px;
}
header ul{
    position:absolute;
    right:1vw;
    top:0;
    line-height:100px;
}
header li{
    display:inline;
    margin-right:4vw;
}
header a{
    color: white;
    text-decoration: none;
}
header a:hover{
    text-decoration: underline;
}
.beijing{
    background-color: antiquewhite;
    color:white;
    height:120vh;
    background-image: url("images/网页背景2-02.png");
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    display:flex;
    flex-direction: column;
    justify-content: center;
    padding-left: 100px;
}
.beijing h2{
    color: #FEF7E6;
    font-size: 50px;
}
.beijing blockquote{
    font-size: 30px;
    margin: 25px 0 35px 0;
}
.beijing a{
    color: white;
    text-decoration: none;
    border:1px solid #ACACAC;
    padding:10px 20px;
    border-radius: 5px;
}
footer{
    background-color: #251907;
    color: #ACACAC;
    height: 60px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}
.type{
    display: flex;
    background-color: #e4e4e4;

}
.type div{
    width:100%;
    text-align: center;
    justify-content: space-between;
    align-items: center;
    padding:50px 50px 50px;
}
.type img{
    width: 100%;
    max-width: 300px;
    border-radius: 10px;
}
.type h3{
    font-size: 20px;
    margin:20px 0;
}
.resume{
    background-color: antiquewhite;
    color:white;
    display: flex;
    align-items: center;
    justify-content: center;
    object-fit: contain;
}
.portfolio{
    background-color: antiquewhite;
    color:white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.certificate{
    background-color: antiquewhite;
    color:white;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
@media screen and (max-width:768px) {
    header ul{
        display: none;
    }
    header h1{
        left: 50%;
        transform:translateX(-50%)
    }
    .beijing h2{
        font-size: 30px;
    }
    .beijing blockquote{
        font-size: 25px;
    }
    .type{
        flex-direction: column;
        align-items: center;
    }
    .type img{
        width:50%;
    }
    .type h3{
        width:100%;
    }
}