body{

    background-color: whitesmoke;
    user-select:none;

}

.container{
    display: grid;
    grid-template-columns: 1fr 1fr 1fr 1fr;
    grid-gap: 2px;
    background-color: #DCDCDC;
    padding: 5px;
    border: #000;
    max-width: 395.8px;
    margin: 0.5;
    /* outline: 0.5px solid #000; */
   
    
}
input{
    /* ekran*/
    grid-column: 1/-1;
    padding: 39.6px 16px; 
    border: none;
    width: 100%;
    text-align: right;
    font-size: 40px;
    overflow: hidden;
    /* backdrop-filter: blur(62px); */
    /* background-color: black; */
    /* height: 60px; */
    /* outline: none; */

}
.item{
    background-color: rgba(255, 255, 255, 0.856) ;
    color: #000;
    padding: 9.3px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 20px;
    cursor: pointer;
    font-weight: 900; 
    /* font-family: MS Sans Serif, Geneva, sans-serif; */
    /* font-weight: 900; */
    
}
form{
    grid-column: 1/-1;
    text-align: right;
    height: 60px;
    line-height: 55px;
    padding: 20px 6px;
    font-size: 25px;
    margin:auto; 
    justify-content: flex-end;
    /* position: relative;  */
    /* display: flex;    */
    
}
input{
    background-color: #DCDCDC ;
    width: 100%;
    height: 60px;
    border: none;
    font-size: 30px;
    outline: none;
    text-align: right;

}

.clean{
    grid-column: 0;
    background-color:rgba(242, 242, 242, 0.8) ;
    font-weight: 100;
    font-size: 16px;
    font-family: Arial, Helvetica, sans-serif;
}
.back{
   grid-column:0 ; 
   background-color: rgba(242, 242, 242, 0.8);
   font-weight: 600;
   font-size: 11px;
   font-family: Arial, Helvetica, sans-serif;
   
}
/*Alik ognel*/
/* .back span {
    display: block;
    margin: auto; 
    padding: 0.7px 5px 4px;
    position: relative;
    border: 1px solid;
    border-left: none;
    line-height: 10px;
    box-sizing: border-box;
} */
/* .back span:before {
    display: block;
    content: "";
    position: absolute;
    right: 100%;
    top: 0;
    transform-origin: center;
    border-style: solid;
    border-width: 1px 0 0 1px;
    transform: rotate(-46deg);
    width: 11.1px;
    height: 11.1px;
    box-sizing: border-box;
    margin-top: 2.6px;
    margin-right: -5px;
} */

.division{
    background-color: rgba(242, 242, 242, 0.8);
    font-weight: 100;
    font-size: 30px;
}
.multiplication{
    background-color: rgba(242, 242, 242, 0.8);
    font-weight: 100;
    font-size: 30px;
}
.remove{
    background-color: rgba(242, 242, 242, 0.8);
    font-weight: 100;
    font-size: 30px;
   
}
.addUp{
    background-color: rgba(242, 242, 242, 0.8);
    font-weight: 100;
    font-size: 30px;
    
}
.equal{
    grid-column: 0;
    background-color:    rgb(150, 196, 226) ;
    font-weight: 100;
    font-size: 32px;

}
.zero{
    grid-column: 0;
    font-family: Arial, Helvetica, sans-serif;
    font-weight: 600;
}

.yot{
    font-family:  Arial, Helvetica, sans-serif; 
    font-weight: 600;

}
.ut{
    font-family:  Arial, Helvetica, sans-serif; 
    font-weight: 600;
   
}
.iny{
    font-family:  Arial, Helvetica, sans-serif; 
    font-weight: 600;
}
.chors{
    font-family:  Arial, Helvetica, sans-serif; 
    font-weight: 600;
}
.hig{
    font-family:  Arial, Helvetica, sans-serif;
    font-weight: 600;
}
.vec{
    font-family:  Arial, Helvetica, sans-serif;
    font-weight: 600;
}
.mek{
    font-family:  Arial, Helvetica, sans-serif;
    font-weight: 600;
}
.erku{
    font-family:  Arial, Helvetica, sans-serif;
    font-weight: 600;
}

.ereq{
    font-family:  Arial, Helvetica, sans-serif;
    font-weight: 600;
}