#key1,#key2 { border:solid hsla(213,13%,83%,1.00) 1px; margin-top:10px; background-color:hsla(213,13%,83%,1.00); } input { vertical-align:middle; width:60px; height:40px; font-size:20px; text-align:center; border-radius:5px; } #text1 { align-self:center; } button { border-radius:5px; background-color:white; margin-top:2px; width:75px; height:40px; font-size:20px; } #btn2 { background-color:hsla(214,10%,70%,1.00); }