/*I love me some border-box*/
* {
    box-sizing: border-box;
}
/*This just stops me getting horizontal scrolling if anything overflows the width*/
body {
    overflow-x: hidden;
}
/*Just removing default browser padding/margin*/
html,
body {
    /*padding: 0;*/
    /*margin: 0;*/
    /*color: #ebebeb;*/
}
/*Flexbox gives us the flexiness we need. The top just stays put as there is no scrolling on the body due to the page never exceeding viewport height*/
.Top {
    /*border: 1px solid blue;*/
    /*display: flex;*/
    align-items: center;
    justify-content: center;
    /*background-color: darkgreen;*/
    /*font-size: 3rem;*/
    /*position: relative;*/
    z-index: 10;
    /*height: 100px;*/
    /*margin-left: 50px;*/
    /*margin-top: 38px;*/
}
/*This is our main wrapping element, it's made 100vh high to ensure it is always the correct size and then moved into place and padded with negative margin and padding*/
.Container {
    display: flex;
    /*overflow: hidden;*/
    height: 70vh;
    /*margin-top: -100px;*/
    /*padding-top: 8px;*/
    position: relative;
    width: 100%;
    backface-visibility: hidden;
    will-change: overflow;
}
/*All the scrollable sections should overflow and be whatever height they need to be. As they are flex-items (due to being inside a flex container) they could be made to stretch full height at all times if needed.
WebKit inertia scrolling is being added here for any present/future devices that are able to make use of it.
*/
.Left,
.Middle,
.Right {
    overflow: auto;
    height: auto;
    /*padding: .5rem;*/
}
/*Entirely optional – just wanted to remove the scrollbar on WebKit browsers as I find them ugly*/
.Left::-webkit-scrollbar,
.Middle::-webkit-scrollbar,
.Right::-webkit-scrollbar {
    display:normal;
}
/*  Left and Right are set sizes while the Middle is set to flex one so it occupies all remaining space. This could be set as a width too if prefereable, perhaps using calc.*/
.Left {
    /*border: 1px solid blue;*/
    /*flex: 1;*/
    width: 18rem;
    /*background-color: indigo;*/
}

.Middle {
    /*margin-left: 50px;*/
    /*border: 1px solid red;*/
    min-width: 900px;
    flex: 1;
}

.Right {
    /*border: 1px solid green;*/
    /*display:none;*/
    width: 32.5rem;
    /*background-color: violet;*/
}