.grid_containerb{
    display: grid;
    border: 1px solid black;
    grid-template-columns: auto auto auto auto auto auto;
    grid-template-areas:
     'header1 header1 header1 header1 header1 header1'
    'nav nav nav nav nav nav'
     'main1 main1 main2 main2 main3 main3'
     'header3 header3 header3 header3 header3 header3'
     'main4 main4 main4 main5 main5 main5'
     'footer footer footer footer footer footer'
    ;
    width: 700px;
    margin: auto;

}

.itema1{
    grid-area: header1;
    background-color:palevioletred;
    border: 1px solid black;
    color:white;
    text-align: center;
   font-size: 30px;
   font-family:Arial, Helvetica, sans-serif;
   padding: 13px;
   }
.itema2{
 grid-area: nav;
 border: 1px solid black;
padding: 15px;
 font-weight: bold;
 font-size: 20px;
 font-family:Arial, Helvetica, sans-serif;
 background-color: violet;
}

.itema3{
    grid-area: main1;
    border: 1px solid black;
    padding:5px;
    background-color: lime;
    font-family:Arial, Helvetica, sans-serif;
}
.itema4{
    grid-area: main2;
    border: 1px solid black;
    background-color: lime;
    padding:5px;
    font-family:Arial, Helvetica, sans-serif;
}
.itema5{
    grid-area: main3;
    border: 1px solid black;
    background-color: lime;
    padding:5px;
    font-family:Arial, Helvetica, sans-serif;
}
.itema6{
    grid-area: header3;
    border: 1px solid black;
    padding: 15px;
 font-weight: bold;
 font-size: 20px;
 font-family:Arial, Helvetica, sans-serif;
 background-color: pink;
}
.itema7{
    grid-area: main4;
    border: 1px solid black;
    background-color: lightskyblue;
    padding:5px;
    font-family:Arial, Helvetica, sans-serif;
}
.itema8{
    grid-area: main5;
    border: 1px solid black;
    background-color: lightskyblue;
    padding:5px;
    font-family:Arial, Helvetica, sans-serif;
}
.itema9{
    grid-area: footer;
    border: 1px solid black;
    padding:5px;
    background-color: magenta;
    font-family:Arial, Helvetica, sans-serif;
    padding: 20px;
    text-align: center;

}


.hi{
    font-weight: bold;
}

span{
    font-weight: bold;
    padding: 5px;
}

.black{
    font-size: 30px;
}