*{
    margin: 0;
}
.main{
    width: 100vw;
    height: 100vh;
}
.center{
    width: 90%;
    height: 100%;
    margin: auto;
}
.first,.second{
    width: 100%;
    height: 6%;
}
.first form{
    display: flex;
}
.first input{
    padding: 10px 0;
    width: 90%;
}
.first button{
    background-color: green;
    color: white;
    border: none;
}
.second{
    height: 93%;
    overflow: auto;
}
.second::-webkit-scrollbar{
    display: none;
}
.second table{
    width: 100%;
    border-collapse: collapse;
}
.second img{
    width: 150px;
    height: 100px;
}
.second td,th{
    padding: 10px;
}
.second tr{
    background-color: lightgray;
}
.second tr:nth-child(odd){
    background-color: gray;
    color: white; 
}
.second a{
    text-decoration: none;
    background-color: green;
    color: white;
    padding: 10px;
}