Обучение. Начало Frontend части

css/training/modal.css

@@ -0,0 +1,94 @@
+.modal__backdrop {
+    position: fixed;
+    top: 0;
+    right: 0;
+    bottom: 0;
+    left: 0;
+    background: rgba(0, 0, 0, 0.5);
+    opacity: 0;
+    z-index: -1;
+    pointer-events: none;
+    transition: opacity0 .2s ease-in;
+}
+
+.modal__content {
+    position: relative;
+    width: auto;
+    margin: 10px;
+    transition: opacity 0.3s ease-in;
+    display: flex;
+    flex-direction: column;
+    background-color: #fff;
+    background-clip: padding-box;
+    border: 1px solid rgba(0, 0, 0, 0.2);
+    border-radius: 0.3rem;
+    box-shadow: 0 0 7px 0 rgba(0, 0, 0, 0.3);
+}
+
+@media (min-width: 576px) {
+    .modal__content {
+        max-width: 500px;
+        margin: 50px auto;
+    }
+}
+
+.modal__show .modal__backdrop,
+.modal__show .modal__content {
+    opacity: 1;
+    z-index: 1050;
+    pointer-events: auto;
+    overflow-y: auto;
+}
+
+.modal__header {
+    display: flex;
+    align-items: center;
+    justify-content: space-between;
+    padding: 15px;
+    border-bottom: 1px solid #eceeef;
+}
+
+.modal__title {
+    margin-top: 0;
+    margin-bottom: 0;
+    line-height: 1.5;
+    font-size: 1.25rem;
+    font-weight: 500;
+}
+
+.modal__btn-close {
+    float: right;
+    font-family: sans-serif;
+    font-size: 24px;
+    font-weight: 700;
+    line-height: 1;
+    color: #000;
+    text-shadow: 0 1px 0 #fff;
+    opacity: 0.5;
+    text-decoration: none;
+}
+
+.modal__btn-close:focus,
+.modal__btn-close:hover {
+    color: #000;
+    text-decoration: none;
+    cursor: pointer;
+    opacity: 0.75;
+}
+
+.modal__body {
+    position: relative;
+    flex: 1 1 auto;
+    padding: 15px;
+    overflow: auto;
+}
+
+.modal__footer {
+    display: flex;
+    align-items: center;
+    justify-content: flex-end;
+    padding: 1rem;
+    border-top: 1px solid #e9ecef;
+    border-bottom-right-radius: 0.3rem;
+    border-bottom-left-radius: 0.3rem;
+}