.submain
{
    flex-direction: row;
    border: 1px solid red;
    flex-wrap: nowrap;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-start;
}
.filtres
{
    border: 1px solid yellow;
    width: 20%;
    /* margin: 5% 2.5% 5% 5%; */
    margin: 42px 21px 42px 42px;
}

.projectes
{
    border: 1px solid purple;
    width: 80%;
    margin: 42px 42px 42px 21px;
    padding: 1.5%;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: space-around;
}

.projecte
{
    border: 1px solid green;
    position: relative;
    width: 20%;
    min-width: 300px;
    overflow: hidden;
    height: 20%;
    min-height: 300px;
    display: flex;
    flex-wrap: nowrap;
    margin: 1.5%;
}

/* internet */

div[id*='cube'] {
    width: 100%;
    height: 100%;
    position: absolute;
    transform-style: preserve-3d;
    transition: transform 0.75s;
}

div[id*='cube'] figure {
    position: absolute;
    width: 100%;
    height: 100%;
    margin: 0;
    /* border: 2px solid black; */
}
div[id*='cube'] .front {
    background: red;
    transform: rotateX(0deg) translateZ(150px);
}

div[id*='cube'] .right {
    background: blue;
    transform: rotateX(90deg) translateZ(150px);
}
/* fi internet */