#form{
    width: 320px;
    margin-left: auto;
    margin-right: auto;
    padding: 20px;
}
#vhod{
    margin-left: 215px;
}

#problem{
    color: rgb(250, 83, 83);
    animation-duration: 1s;
    animation-name: example2;
   
    
}

@keyframes example2 {
    0% {margin-right: 0px;}  
    15% {margin-right: -5px;}
    30% {margin-right: 0px;}
    45% {margin-right: -5px;}
    60% {margin-right: 0px;}
    75% {margin-right: -5px;}
    90% {margin-right: 0px;}
    100%{margin-right: 0;}
}