body,html{
    margin: 0;
    padding: 0;
}
p{
    font-family:arial;
}
ul{
    list-style: none;
    margin: 0;
    padding: 0;
}
header{
    width: 90%;
    margin: 0 auto;
    padding: 2.5% 0;
}
#top{
    width: 90%;
    margin: 0 auto;
    margin-top: 10%;
    padding: 0;
}
h1{
    text-align: center;
    margin-bottom: 5%;
}
.boder{
    width: 60%;
    height: 1px;
    margin: 0 auto;
    background-color: #000;
    margin-bottom: 20%;
}
#portfolio{
    width: 90%;
    margin: 0 auto;
}
.portfolio_area{
    width: 100%;
    margin: 0 auto;
    margin-bottom: 15%;
}
#portfolio h2{
    margin-top: 10%;
    border-left: 2px solid #000;
    padding-left: 5%;
}
.tag_area{
    width: 35%;
    margin-bottom: 10%;
}
.tag_area_li{
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    column-gap: 5%;
}

.gr{
    background-color: #C1C1C1;
}
.bk{
    background-color: #000;
}
.gr,.bk{
    display: flex;
    justify-content: center;
    align-items: center;
}
.gr p,.bk p{
    margin: 0;
    color: #fff;
    font-size: 14px;
    text-align: center;
}
.portfolio_txt{
    font-size: 14px;
    line-height: 150%;
}
.portfolio{
    margin-top: 10%;
}
@media screen and (min-width:600px) {
    .tag_area{
        width: 20%;
        margin-bottom: 10%;
    }
}
@media screen and (min-width:900px) {
    .tag_area{
        width: 35%;
        margin-bottom: 10%;
    }
    .boder{
        margin-bottom: 15%;
        width: 45%;
    }
    .portfolio_area{
        display: grid;
        grid-template-columns: 1fr 1fr;
        column-gap: 10% ;
    }
    .logo{
        width: 30%;
        margin: 0 auto;
    }
    #portfolio h2{
        margin-top: 0;
    }
    .portfolio_txt{
margin-top: 10%;
    }
    .portfolio_txt{
        font-size: 16px;
        line-height: 150%;
    }
    
}
@media screen and (min-width:1200px) {
    html{
        max-width: 1200px;
        margin: 0 auto;
    }
}