#about , #skills{
        background:rgb(0, 0, 0);
        padding-bottom: 30px;
        height: 810px;
        padding-top: 100px;

}

#skills {
        background:linear-gradient(#00000071,#00000070) , url(../img/background.jpg) center/cover no-repeat fixed;
}

#contact{
        background: #000;
        padding: 100px 0;
}

#sponsor{
        padding: 100px 0;
}
#portfolio{
        padding-top: 100px;
}
.portfolio-card{
        width: 470px;
        margin-bottom: 30px;
}

.portfolio-card .img{
        width: 100%;
        overflow: hidden;
        box-shadow: 0px 1px 7px 4px #16161621;
        height: 780px;
}

.portfolio-card .img img{
        width: 100%;
        object-fit: cover;
}

.portfolio-card .title{
        margin-bottom: 30px;
}

.portfolio-card .title a{
        color: rgb(0, 0, 0);
        transition: .6s ease all;
}

.portfolio-card .title a:hover{
        color: rgb(0, 162, 255);
}