Merhaba arkadaşlar siteyi Wc3 validator ile taradıgım zaman bu hatayı alıyorum ne demek istedigini anlıyamadım nasıl düzeltebilirim?

          HATA 1

Error: CSS: speak: none is not a speak value.
From line 18, column 837; to line 18, column 840
400;speak:none;displ

            HATA 2

Error: Start tag a seen but an element of the same type was already open.
From line 159, column 6; to line 159, column 44

x;">↩                    <a href="/mirc.rar" title="mirc indir">↩              
Error: End tag a violates nesting rules.
From line 159, column 6; to line 159, column 44
x;">↩                    <a href="/mirc.rar" title="mirc indir">↩              
Fatal Error: Cannot recover after last error. Any further errors will be ignored.↩

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