    img {
        height: 250px;
        width: 200px;
    }

    p {
        padding: 10px
    }
    img.logo {
        height: 107px;
        width: 472px;
    }
    img.keyboard {
        height: 300px;
        width: 721px;
    }
    .g-recaptcha {
        display: block !important;
        visibility: visible !important;
        height: auto !important;
        width: auto !important;
    }
    
    img.fullscreen {
        height: 150px;
        width: 526px;
    }
    html, body {
        height: 100%;
        margin: 0;
        font-family: Arial, sans-serif;
        background: url('../images/control_background.jpeg') no-repeat center center fixed;
        background-size: cover;
        overflow: hidden;
    }
    .white-content {
        max-width: 950px;
        width: 100%;
        padding: 20px;
        margin: auto;
        box-sizing: border-box;
        overflow: auto;
        background: rgba(255, 255, 255, 0.9); /* Semi-transparent background */
        border-radius: 10px; /* Rounded corners */
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1); /* Optional: Add a slight shadow */
    }

      .instruction-text {
        background-color: rgba(255, 255, 255, 0.8);
        padding: 20px;
        border-radius: 10px;
      }

    :root {
        --top_middle: 0px;
        --left_middle: 0px;

        --top_a: 0px;
        --left_a: 0px;
        --top_b: 0px;
        --left_b: 0px;
        --top_c: 0px;
        --left_c: 0px;


        --top_d: 0px;
        --right_d: 0px;
        --top_e: 0px;
        --right_e: 0px;
        --top_f: 0px;
        --right_f: 0px;

        --bottom_g: 0px;
        --right_g: 0px;
        --bottom_h: 0px;
        --right_h: 0px;
        --bottom_i: 0px;
        --right_i: 0px;


        --bottom_j: 0px;
        --left_j: 0px;
        --bottom_k: 0px;
        --left_k: 0px;
        --bottom_l: 0px;
        --left_l: 0px;

       --upper1: 0px;
       --upper2: 0px;
       --upper3: 0px;

       --lower1: 0px;
       --lower2: 0px;
       --lower3: 0px;

        --left_card: 0px;
        --right_card: 0px;
        --top_card: 0px;

        --top_reward: 0px;
        --left_reward: 0px;
    }

    .fixation {
        /* plus fixation will be in the middle of the screen*/
        display: block;
        margin-left: auto;
        margin-right: auto;
        font-size: 15.8px;
    }
    .custom-background {
        background-color: lightblue; /* Change to your desired color */
    }
    .reward {

        display: block;
        margin-left: auto;
        margin-right: auto;
        height: 110px;
        width: 100px;
    }

    .group {
        height: 184px;
        width: 466px;
    }
    .color_blind {
        height: 300px;
        width: 300px;
    }
    .confirm {
        height: 355px;
        width: 785px;
    }
    .wizard {
        height: 300px;
        width: 300px;
    }
    .wind {
        height: 241px;
        width: 350px;
    }
    .start {
        
        height: 100px;
        width: 54px;
    }
    
    .example {
        height: 250px;
        width: 250px;
    }
    .example1 {
        height: 170px;
        width: 300px;
    }

    .tau {
        height: 169px;
        width: 300px;
    }
    .shape{
        
        height: 250px;
        width: 450px;
    }
    img.card_left {
        position: fixed;
        height: 200px;
        width: 108px;
        left: var(--left_card);
        top: var(--top_card);
    }

    img.card_right {
        position: fixed;
        height: 200px;
        width: 108px;
        right: var(--right_card);
        top: var(--top_card);
    }



    /* we have one image in every quadrant pixels locations are from Balaban et al., 2019 */

    /* first quadrant */
    img.a {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        top: var(--top_a);
        left: var(--left_a);
    }

    img.b {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        top: var(--top_b);
        left: var(--left_b);
    }

    img.c {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        top: var(--top_c);
        left: var(--left_c);
    }

    /* second quadrant */
    img.d {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        top: var(--top_d);
        right: var(--right_d);
    }

    img.e {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        top: var(--top_e);
        right: var(--right_e);
    }

    img.f {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        top: var(--top_f);
        right: var(--right_f);
    }

    /* third quadrant */
    img.g {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        bottom: var(--bottom_g);
        right: var(--right_g);
    }

    img.h {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        bottom: var(--bottom_h);
        right: var(--right_h);
    }

    img.i {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        bottom: var(--bottom_i);
        right: var(--right_i);
    }

    /* fourth quadrant */
    img.j {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        bottom: var(--bottom_j);
        left: var(--left_j);
    }

    img.k {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        bottom: var(--bottom_k);
        left: var(--left_k);
    }

    img.l {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        bottom: var(--bottom_l);
        left: var(--left_l);
    }
    /* locations for middle square in set size 1 */
    img.upper1 {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        left: var(--left_middle);
        top: var(--upper1);
    }
    
    img.upper2 {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        left: var(--left_middle);
        top: var(--upper2);
    }
    
    img.upper3 {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        left: var(--left_middle);
        top: var(--upper3);
    }
    
    img.lower1 {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        left: var(--left_middle);
        bottom: var(--lower1);
    }
    
    img.lower2 {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        left: var(--left_middle);
        bottom: var(--lower2);
    }
    
    img.lower3 {
        position: fixed;
        height: 51.4px;
        width: 51.4px;
        left: var(--left_middle);
        bottom: var(--lower3);
    }