* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background: linear-gradient(200deg, #2b004e, #00b7ff);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.betterformat{
    background-color: rgb(255, 255, 255, 0.15);
    border-radius: 10px;
    padding: 30px;
    max-width: 1200px;
    text-align: justify;
    width: calc(100% - 200px);
    margin-left: 100px;
    margin-right: 100px;
    color: rgb(255, 255, 255);
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15);
    margin-top: 50px;
    margin-bottom: 50px;
    transition: background-color 0.25s;
    transition: box-shadow 0.25s;
    height: calc(100vh - 190px);
    overflow-y: auto;
}

.square{
    display: flex;
    flex-direction: column;
    background-color: rgb(255, 255, 255, 0.15);
    border-radius: 10px;
    padding: 30px;
    max-width: 1200px;
    width: calc(100%);
    text-align: center;
    color: rgb(255, 255, 255);
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15);
    margin-top: 50px;
    transition: 0.3s;
}

.rounded{
    border-radius: 10px;
    max-width: calc(80%);
    margin-top: 20px;
    align-self: center;
}

.betterformat::-webkit-scrollbar {
    width: 5px;
    background-color: transparent;
}

.betterformat::-webkit-scrollbar-thumb {
    background-color: #000;
    border-radius: 5px;
    height: 20px;
}

.betterformat::-webkit-scrollbar-thumb:hover {
    background-color: #555;
}

.lefter{
    display: flex;
    flex-direction: row;
}

@media (min-width: 1000px) {
    .return{
        background-color: rgb(255, 255, 255, 0.15);
        border-radius: 10px;
        padding: 30px;
        width: 85px;
        color: rgb(255, 255, 255);
        box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15);
        margin-bottom: -30px;
        margin-top: 50px;
        padding-bottom: -50px;
        transition: 0.3s;
        padding: 0px;
        padding-top: 5px;
        padding-left: 10px;
    }
    
    .return:hover {
        background-color: rgb(255,255,255,0.18);
        transition: background-color 0.42s;
        box-shadow: 10px 40px 100px rgba(0, 0, 0, 0.3);
        transform: scaleX(1.003) translateY(-3px);
        transition: 0.3s;
    }
    
    
    .fakereturn{
        padding: 30px;
        width: calc(100vw - 285px);
        max-width: 1115px;
    }
    
    .fleche{
        width: 60px;
    }
}

@media (max-width: 1000px) {
    
    .fleche{
        width:0px;
    }

    .betterformat{
        width: calc(100% - 42px);
        margin-top: 21px;
        margin-left: 21px;
        margin-right: 21px;
        height: calc(100vh - 90px);
    }

    .square{
        padding: 16px;
    }
}