index.css

#ModDiagram1 {
    position: relative;
    width: 33%;
    height: 100%;
}
#ModDiagram2 {
    position: relative;
    width: 33%;
    height: 100%;
}
#ModDiagram3 {
    position: relative;
    width: 33%;
    height: 100%;
}
#ModDiagrams {
    height: 34vh;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}
h1 {
    text-align: center;
}
h2 {
    text-align: center;
}
#Remove-Button1 {
    top: 50%;

}
#ModDiagram1Delete {
    position:absolute;
    transition: .5s ease;
    top: 50%;
    left: 13.5%;
}
#DiagramResult {
    position: relative;
    width: 33%;
    height: 100%;
}
#ResultDiagramDiv {
    height: 34vh;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}
#ButtonsDiv {
    height: 10vh;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
}

#Diagram1Buttons {
    position: relative;
    width: 33%;
    height: 100%;
    float:left;
}

#Diagram2Buttons {
    position: relative;
    width: 33%;
    height: 100%;
    float:left;
}

#Diagram3Buttons {
    position: relative;
    width: 33%;
    height: 100%;
    float:left;
}
#InnerDiagram1Buttons {
    heigth: 100%;
    display: flex;
    height: 50%;

}
#InnerDiagram2Buttons {
    heigth: 100%;
    display: flex;
    height: 50%;
}
#InnerDiagram3Buttons {
    heigth: 100%;
    display: flex;
    height: 30%

}