CSS Grid layout

Hi guys, i'm having an headache trying to get my CSS grid to auto-fit the contents inside a sub-grid. However, my content spills under the footer using the following code.

testing the grid

.container{ display:grid; grid-template-areas: "header header header" "logo logo logo" "nav contents aside" "footer footer footer"; grid-template-columns: 143px auto 143px; overflow:hidden; grid-template-rows: 40px auto 680px ; grid-row-gap: 10px; grid-column-gap: 10px; height: 100vh; } .header{ grid-area:header; background-color:#ef9505; color:#fff; height:30px; padding:3px; text-align:center; padding-top:10px; } .nav{ grid-area:nav; background-color:pink; } .content{ grid-area:contents; background-color:gold; } .aside{ grid-area:aside; background-color:brown; width:160hv; } .footer{ grid-area:footer; background-color:darkslategrey; height:250px; position:relative; } .logo{ grid-area:logo; background-color:green; height:100px; text-align:center; color:#fff; } .inner-grid{ display:inline-grid; border: solid thick green; grid-padding: 2px; grid-template-rows: repeat(auto-fit, minmax(250px, 1fr)) grid-template-columns: 1fr auto 1fr; background-color:red; max-width:510px; margin-left:4px; grid-gap:5px; } .inner-grid > div{ background-color:white; } .body{ margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; } /* Stack the layout on small devices/viewports. */ @media all and (max-width: 475px) { body { grid-template-areas: "header" "logo" "nav" "contents" "aside" "footer"; grid-template-rows: 80px 1fr 70px 1fr 70px; grid-template-columns: 1fr; background-color:black; } }

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