*{
    margin: 0px;
    padding: 0px;
}

body{
    color: #ccc;
    background-color: #444;
    max-width: 100%;
    overflow-x: hidden;
    height: 100vh;
    scrollbar-width: 0%;
}

h4{
    color: #99a;
}

#container{
    width: 100%;
    height: 100%;
}

#about{
    height: 80%;
}
#post_about{
    height: 50%;
}

#technology{
    height: 80%;
}
#post_technology{
    height: 50%;
}

#projects{
    height: 800px;
}
#post_projects{
    height: 10%;
}

#certificate{
    height: 80%;
}

#contact{
    height: 100%;
    height: 10%;
}

.flex{
    display: flex;
}

.flex_wrap{
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
}

.flex_center{
    display: flex;
    justify-content: center;
    align-items: center;
}

#nav{
    width: 100%;
    height: 10%;
    background-color: #444;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.placeholder{
    width: 100%;
    height: 10%;    
}

.tile{
    height: 100%;
    box-sizing: border-box;
    border: 1px solid #ccc;
}

.hauto{
    height: auto;
}

.h100{
    height: 100%;
}

.h90{
    height: 90%;
}

.h80{
    height: 80%;
}

.h70{
    height: 70%;
}

.h60{
    height: 60%;
}

.h50{
    height: 50%;
}

.h40{
    height: 40%;
}

.h33{
    height: 33.3%;
}

.h30{
    height: 30%;
}

.h20{
    height: 20%;
}

.h10{
    height: 10%;
}

.wauto{
    width: auto;
}

.w100{
    width: 100%;
}

.w80{
    width: 80%;
}

.w70{
    width: 70%;
}

.w60{
    width: 60%;
}

.w50{
    width: 50%;
}

.w33{
    width: 33.3%;
}

.w25{
    width: 25%;
}

.w20{
    width: 20%;
}

.tile:hover{
    background-color: #555;
}

section {
    scroll-margin-top: 1%;
    margin: 1%;
    box-sizing: border-box;
}

.center{
    text-align: center;
}

.project_tile{
    width: 50%;
    height: 80%;
}

.technology_tile{
    width: 21%;
    height: 33%;
    border-radius: 20%;
}

.certificate_tile{
    width: 33%;
}

.nav_tile{
    width: 33%;
}

#main_foto{
    border-radius: 50%;
    width: 400px;
    height: 400px;
    background-size: cover;
    background-image: url(./img/main.jpg); 
    background-repeat: no-repeat;
}

#links{
    width: 400px;
    height: 100px;
}

.link{
    width: 25%;
    border-radius: 40%;
}

.about_tile{
    width: 50%;
    height: 100%;
}

.about_tile_2{
    height: 50%;
    width: 100%;
}

.about_tile_3{
    height: 60%;
    width: 60%;
}

.link:nth-child(1) {transform: translate(-30px, -30px);}
.link:nth-child(2) {transform: translate(-10px, 20px);}
.link:nth-child(3) {transform: translate(10px, 20px);}
.link:nth-child(4) {transform: translate(30px, -30px);}

/*
.technology_tile:nth-child(2) {transform: translate(0px, 30px);}
.technology_tile:nth-child(3) {transform: translate(0px, 50px);}
.technology_tile:nth-child(4) {transform: translate(0px, 60px);}
.technology_tile:nth-child(5) {transform: translate(0px, 50px);}
.technology_tile:nth-child(6) {transform: translate(0px, 30px);}
*/

.technology_tile {transform: translate(0px, 30px);}

@media (max-width: 1250px) {
    .project_tile {
        width: 100%;
    }
}

@media (max-width: 1000px) {
    .technology_tile{
        width: 33%;
        height: 33%;
    }
    .certificate_tile{
        width: 50%;
    }
    .about_tile{
        width: 100%;
    }
    .about_tile_2{
        height: 100%;
        width: 100%;
    }
}

@media (max-width: 750px) {
    .technology_tile{
        width: 50%;
        height: 25%;
    }
    .project_tile {
        width: 100%;
        height: 100%;
    }
    .certificate_tile{
        width: 100%;
    }
    #main_foto{
        width: 350px;
        height: 350px;
    }
    #links{
        width: 350px;
    }
    #about{
        height: 70%;
    }
}

@media (max-width: 500px) {
    .technology_tile{
        width: 50%;
        height: 20%;
    }
    .nav_tile{
        width: 100%;
        height: 33%;
    }
    #nav{
        height: 20%;
    }
}

hr{
    width: 50%;
    margin: auto;
}