.flex {
    display: flex;
}
.flex-wrap{
    flex-wrap: wrap;
}
.flex-1 {
    flex: 1;
}
.justify-content {
    justify-content: center;
}
.align-items {
    align-items: center;
}
.space-around {
    justify-content: space-around;
}
.space-between {
    justify-content: space-between;
}
.relative {
    position: relative;
}
.absolute {
    position: absolute;
}
.auto{
    margin: 0 auto;
}
.border-box{
    box-sizing: border-box;
}

.t-center{
    text-align: center;
}