Roman-website-applicant/tutorgo/assets/scssold/utils/_mixins.scss

    @use "sass:selector";

    @mixin tp-root($child) {
        @at-root #{selector.unify(&, $child)} {
            @content;
        }
    }


    // bg color
    @mixin bg-color($color, $opacity) {
        background-color: rgba($color, $opacity);
    }


    @mixin tp-afbf-default($content: '', $top: 50%, $left: 0, $right: auto, $x: 0%, $y: -50%, $height: 12px, $width: 1px, $bg-color: var(--tp-common-black)) {
        position: absolute;
        content: $content;
        top: $top;
        left: $left;
        right: $right;
        width: $width;
        height: $height;
        @include transform(translate($x, $y));
        background-color: $bg-color;
    }

    @mixin tp-afbf-full($content: '', $top: 0, $left: 0, $right: auto, $x: 0%, $y: 0%, $height: 100%, $width: 100%, $bg-color: var(--tp-common-black)) {
        position: absolute;
        content: $content;
        top: $top;
        left: $left;
        right: $right;
        width: $width;
        height: $height;
        @include transform(translate($x, $y));
        background-color: $bg-color;
    }

    @mixin tp-afbf-center($content: '', $top: 50%, $left: 50%, $right: auto, $x: -50%, $y: -50%, $height: 50px, $width: 50px, $bg-color: var(--tp-common-black)) {
        position: absolute;
        content: $content;
        top: $top;
        left: $left;
        right: $right;
        width: $width;
        height: $height;
        @include transform(translate($x, $y));
        background-color: $bg-color;
    }


    // placeholder input
    @mixin tp-placeholder {
        &::-webkit-input-placeholder {
            @content;
        }

        &:-moz-placeholder {
            @content;
        }

        &::-moz-placeholder {
            @content;
        }

        &:-ms-input-placeholder {
            @content;
        }
    }

    // animate 
    @mixin animate($animation, $duration, $repeat, $easing) {
        -webkit-animation: $animation $duration $repeat $easing;
        -moz-animation: $animation $duration $repeat $easing;
        -ms-animation: $animation $duration $repeat $easing;
        -o-animation: $animation $duration $repeat $easing;
        animation: $animation $duration $repeat $easing;
    }

    // filter 
    @mixin filter($value) {
        -webkit-filter: $value;
        filter: $value;
    }

    // appearance for select
    @mixin appearance($value) {
        -webkit-appearance: $value;
        -moz-appearance: $value;
        -ms-appearance: $value;
        -o-appearance: $value;
        appearance: $value;
    }

    // keyframes 
    @mixin keyframes($name) {
        @-webkit-keyframes #{$name} {
            @content;
        }

        @-moz-keyframes #{$name} {
            @content;
        }

        @-ms-keyframes #{$name} {
            @content;
        }

        @keyframes #{$name} {
            @content;
        }
    }

    //backgroud 
    @mixin background {
        background-position: center;
        background-size: cover;
        background-repeat: no-repeat;
    }

    //transition
    @mixin transition($time) {
        -webkit-transition: all $time ease-out 0s;
        -moz-transition: all $time ease-out 0s;
        -ms-transition: all $time ease-out 0s;
        -o-transition: all $time ease-out 0s;
        transition: all $time ease-out 0s;
    }

    // transform
    @mixin transform($transforms) {
        -webkit-transform: $transforms;
        -moz-transform: $transforms;
        -ms-transform: $transforms;
        -o-transform: $transforms;
        transform: $transforms;
    }

    //border
    @mixin border-radius($man) {
        -webkit-border-radius: $man;
        -moz-border-radius: $man;
        -o-border-radius: $man;
        -ms-border-radius: $man;
        border-radius: $man;
    }

    // sentence case
    @mixin sentence-case() {
        text-transform: lowercase;

        &:first-letter {
            text-transform: uppercase;
        }
    }

    // Flexbox display
    @mixin flexbox() {
        display: -webkit-box;
        display: -moz-box;
        display: -ms-flexbox;
        display: -webkit-flex;
        display: flex;
    }

    // Box shadows
    @mixin box-shadow($shadow) {
        -webkit-box-shadow: $shadow;
        -moz-box-shadow: $shadow;
        -ms-box-shadow: $shadow;
        -o-box-shadow: $shadow;
        box-shadow: $shadow;
    }

    @mixin square-btn($size, $circle: false) {
        width: $size;
        height: $size;
        line-height: $size;
        text-align: center;
        @if $circle {
            border-radius: 50%;
        }
    }