diff --git a/frontend/RobotoMono.css b/frontend/RobotoMono.css
new file mode 100644
index 0000000..58f6f02
--- /dev/null
+++ b/frontend/RobotoMono.css
@@ -0,0 +1,48 @@
+/* cyrillic-ext */
+@font-face {
+  font-family: 'Roboto Mono';
+  font-style: normal;
+  font-weight: 400;
+  src: url(https://fonts.gstatic.com/s/robotomono/v22/L0xuDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_3vq_SeW4Ep0.woff2) format('woff2');
+  unicode-range: U+0460-052F, U+1C80-1C88, U+20B4, U+2DE0-2DFF, U+A640-A69F, U+FE2E-FE2F;
+}
+/* cyrillic */
+@font-face {
+  font-family: 'Roboto Mono';
+  font-style: normal;
+  font-weight: 400;
+  src: url(https://fonts.gstatic.com/s/robotomono/v22/L0xuDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_3vq_QOW4Ep0.woff2) format('woff2');
+  unicode-range: U+0301, U+0400-045F, U+0490-0491, U+04B0-04B1, U+2116;
+}
+/* greek */
+@font-face {
+  font-family: 'Roboto Mono';
+  font-style: normal;
+  font-weight: 400;
+  src: url(https://fonts.gstatic.com/s/robotomono/v22/L0xuDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_3vq_R-W4Ep0.woff2) format('woff2');
+  unicode-range: U+0370-03FF;
+}
+/* vietnamese */
+@font-face {
+  font-family: 'Roboto Mono';
+  font-style: normal;
+  font-weight: 400;
+  src: url(https://fonts.gstatic.com/s/robotomono/v22/L0xuDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_3vq_S-W4Ep0.woff2) format('woff2');
+  unicode-range: U+0102-0103, U+0110-0111, U+0128-0129, U+0168-0169, U+01A0-01A1, U+01AF-01B0, U+0300-0301, U+0303-0304, U+0308-0309, U+0323, U+0329, U+1EA0-1EF9, U+20AB;
+}
+/* latin-ext */
+@font-face {
+  font-family: 'Roboto Mono';
+  font-style: normal;
+  font-weight: 400;
+  src: url(https://fonts.gstatic.com/s/robotomono/v22/L0xuDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_3vq_SuW4Ep0.woff2) format('woff2');
+  unicode-range: U+0100-02AF, U+0304, U+0308, U+0329, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20CF, U+2113, U+2C60-2C7F, U+A720-A7FF;
+}
+/* latin */
+@font-face {
+  font-family: 'Roboto Mono';
+  font-style: normal;
+  font-weight: 400;
+  src: url(https://fonts.gstatic.com/s/robotomono/v22/L0xuDF4xlVMF-BfR8bXMIhJHg45mwgGEFl0_3vq_ROW4.woff2) format('woff2');
+  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
+}